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United States Coast Guard Navigation Rules




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US Department Commandant Mailing Address
of United States Coast Guard 2100 2nd Street SW
Washington DC States
Phone 202 Guard
COMDTINST M166722C
1 October INSTRUCTION Navigation Rules PURPOSE This instruction forwards International and Inland
Navigation Rules and Regulations for use by Coast Guard ACTION Area and District Commanders commanders of mainte
nance and logistics commands and unit commanding officer shall
ensure and compliance with this manual
3 DIRECTIVES AFFECTED
COMDTINST M166722B is DISCUSSION
a This manual contains the International Regulations for Prevention of
Collisions at Sea 1972 72 COLREGS It also contains the Inland
Navigation Rules which were enacted by law on 24 December 1980
and became effective for all Inland waters except the Great Lakes
on 24 December 1981 The Inland Rules became effective on the
Great Lakes on 1 March 1983 Some differences do remain
between the International and Inland Rules The sidebyside pre
sentation of the Rules in this publication will allow mariners to deter
mine those b On 19 November 1989 nine amendments to the 72 COLREGS
became effective These nine amendments are technical in nature
and are incorporated in this publication The Coast Guard has
adopted several amendments to the Inland and International Rules
and Annexes which are also included in this revision This publica
tion includes all revisions through 30 September M166722C
5 ORDERING a Following initial distribution of this publication Coast Guard and Navy
units should order additional copies from
Defense Mapping Agency
Combat Support Center
Washington DC 203150030
Attn PMSR
b The public may purchase this publication from the US Government
Printing Office GPO at GPO Bookstores located in many Cities from
GPO sales agents located in principal ports or by telephone at 202
7833238 The book is also available for order by mail from
of Documents
US Government Printing Office
PO Box 371954
Pittsburgh PA CHANGES AND CORRECTIONS Notices of changes to the Navigation
Rules and Regulations will appear in the Federal Register Local Notice
to Mariners Weekly Notice to Mariners and Commandant Notice
Comments should be addressed to Commandant Rudy K Peschel
Chief Office of Navigation Safety
Waterway Services
RECORD OF DATE OF DATE BY WHOM
NUMBER CHANGE ENTERED ENTERED
CONTENTS
I NAVIGATION RULES AND REGULATIONS
and Inland 1
PART AGeneral 2
Rule 2
Rule 6
Rule 3General Definitions 6
PART BSteering and Sailing Rules 12
IConduct of Vessels In Any Condition of
Visibility 12
Rule 12
Rule 5Lookout 12
Rule 6Safe Speed 14
Rule 7Risk of 16
Rule 8Action to Avoid Collision 18
Rule 9Narrow 20
Rule 10Traffic Separation Traffic Services 22
IIConduct of Vessels In Sight of One Another 26
Rule 26
Rule 12Sailing Vessels 26
Rule 28
Rule 14Headon Situation 30
Rule 15Crossing Situation 30
Rule 16Action by Giveway Vessel 32
Rule 17Action by Standon Vessel 32
Rule Between Vessels 34
IllConduct of Vessels In Restricted Visibility 36
Rule 19Conduct of Vessels in Restricted Visibility
PART CLights and Shapes 38
Rule 38
Rule 40
Rule of 42
Rule Vessels Underway 44
Rule 24Towing and 52
Rule 25Sailing Vessels Underway and Vessels Under Oars 70
Rule 26Fishing 78
Rule 27Vessels Not Under Command or Restricted in
Their Ability to 86
Rule 28Vessels Constrained by Their 100
Rule 29Pilot Vessels 102
Rule 30Anchored Vessels and Vessels Aground 104
Rule 110
PART DSound and Light Signals Rule 112
Rule 33Equipment for Sound Signals 112
Rule and Warning Signals 114
Rule 35Sound Signals in Restricted Visibility 118
Rule 36Signals to Attract Attention Rule 37Distress 124
PART EExemptions 126
Rule 126
ANNEX AND TECHNICAL DETAILS OF LIGHTS
AND SHAPES 130
ANNEX SIGNALS FOR FISHING VESSELS
FISHING IN CLOSE 148
ANNEX DETAILS OF SOUND SIGNAL
APPLIANCES 150
ANNEX IVDISTRESS 160
ANNEX RULES
IV LINES OF DEMARCATION
V PENALTY PROVISIONS 198
Violations of International Navigation Rules and Regulations Violations of Inland Navigation Rules and Regulations
198
Penalties for negligent operations 200
Duties related to marine casualty assistance and information Duty to provide assistance at sea 201
Injunctions 201
VI ALTERNATIVE Inland
WATERS SPECIFIED BY THE SECRETARY
VIII VESSEL REGULATIONS 206
IX LEGAL CITATIONS
X CONVERSION TABLE
Introduction
International Rules
The International Rules in this book were formalized in on the International Regulations for Preventing Collisions at
Sea 1972 and became effective on July 15 1977 The Rules com
monly called 72 COLREGS are part of the Convention and the flags of states ratifying the treaty are bound to the Rules
The United States has ratified this treaty and all United States flag
vessels must adhere to these Rules where applicable President Gerald
R Ford proclaimed 72 COLREGS and the Congress adopted them as
the International Navigational Rules Act of 1977
The 72 COLREGS were developed by the Consultative Organization IMCO which in May 1982 was
renamed the International Maritime Organization IMO In IMOs Assembly adopted 55 amendments to the 72 COLREGS
which became effective on June 1 1983 The IMO also adopted 9
more amendments which became effective on November 19 1989
The International Rules in this book contain these amendments
These Rules are applicable on waters outside of established lines of demarcation The lines are called Lines and delineate those waters upon which
comply with the Inland and International Rules Lines are contained in this book
Inland Rules
The Inland Rules in this book replace the old Inland Rules Rules Great Lakes Rules their respective pilot rules rules and parts of the Motorboat Act
of 1940 Many of the
old navigation rules were originally enacted in the last provisions were added to cope with the of water Eventually the navigation rules for
United States inland waterways became such a confusing patchwork that in the 1960s several attempts were made to revise
and simplify them These attempts were not successful
Following the signing of the Convention on the for Preventing Collisions at Sea 1972 a new effort was
made to unify and update the various inland navigation rules This
effort culminated in the enactment of the Inland Navigational Rules
Act of 1980 This legislation sets out Rules 1 through 38 the main
body of the Rules The five Annexes were published as is important to note that with the exception of Annex V to the Inland
Rules the International and Inland Rules and Annexes are very sim
ilar in both content and format
The effective date for the Inland Navigation Rules was except for the Great Lakes where the effective date was
March 1 1983
General
PART AGENERAL
RULE 1
Application
a These Rules shall apply to all vessels upon the high seas and
in all waters connected therewith navigable by seagoing vessels
b Nothing in these Rules shall interfere with the operation of spe
cial rules made by an appropriate authority for roadsteads lakes or inland waterways connected with the high seas and
navigable by seagoing vessels Such special rules shall conform as
closely as possible to these Rules
C Nothing in these Rules shall interfere with the operation of any
special rules made by the Government of any State with respect to
additional station or signal lights shapes or whistle signals for ships
of war and vessels proceeding under convoy with respect to addi
tional station or signal lights or shapes for fishing vessels engaged in
fishing as a fleet These additional station or signal lights shapes or
whistle signals shall so far as possible be such that they cannot be
mistaken for any light shape or signal authorized elsewhere under
these Rules1
Submarines may display as a distinctive means of an intermittent yellow beacon with a sequence of operation of one flash per second for three 3
seconds followed by a three 3 second offperiod Other special rules made by the Secretary
of the Navy with respect to additional station and signal lights are found in Part 707 of Title
32 Code of Federal Regulations 32 CFR 707
INLAND
General
PART AGENERAL
RULE I
Application
a These Rules apply to all vessels upon the inland waters of the
United States and to vessels of the United States on the of the Great Lakes to the extent that there is no conflict with
Canadian law
b i These Rules constitute special rules made by an appropriate
authority within the meaning of Rule 1 b of the Regulations
ii All vessels complying with the construction and equipment
requirements of the International Regulations are considered to
be in compliance with these Rules
c Nothing in these Rules shall interfere with the operation of any
special rules made by the Secretary of the Navy with respect to addi
tional station or signal lights and shapes or whistle signals for ships of
war and vessels proceeding under convoy or by the Secretary with
respect to additional station or signal lights and shapes for fishing
vessels engaged in fishing as a fleet These additional station or sig
nal lights and shapes or whistle signals shall so far as possible be
such that they cannot be mistaken for any light shape or signal
authorized elsewhere under these Rules Notice of such special rules
shall be published in the Federal Register and after the effective
date specified in such notice they shall have effect as if they were a
part of these Rules2
2 Submarines maydisplay as a distinctive means of an intermittent yellow beacon with a sequence of operation of one flash per second for three 3
seconds followed by a three 3 second offpealed Other special rules made by the Secretary
of the Navy with respect to additional station and signal lights are found in Part 707 of Title 32
Cede of Federal Regulations 32 CFR 707
General
RULE 1CONTINUED
d Traffic separation schemes may be adopted by the the purpose of these Rules
e Whenever the Government concerned shall have a vessel of special construction or purpose cannot comply fully
with the provisions of any of these Rules with respect to the range or arc of visibility of lights or shapes as well as to and of appliances such
vessel shall comply with such other provisions in regard to the num
ber position range or arc of visibility of lights or shapes as well as to
the disposition and of appliances as
her Government shall have determined to be the closest with these Rules in respect to that vessel
INLAND
General
RULE 1 CONTINUED
d Traffic separation schemes may be established for the purposes
of these Rules Vessel traffic service regulations may be in effect in
certain areas
e Whenever the Secretary determines that a vessel or class of
vessels of special construction or purpose cannot comply fully with of any of these Rules with respect to the number or arc of visibility of lights
or shapes as well as to the dis
position and of appliances the ves sel
shall comply with such other provisions in regard to the range or arc of visibility of lights or shapes as well as to and of appliances as the
Secretary shall have determined to be the closest possible these Rules The Secretary may issue a certificate of for a vessel or class of vessels
specifying the compliance with these Rules The Secretary of the Navy shall
make these and issue certificates of for vessels of the Navy
f The Secretary may accept a certificate of alternative by a contracting party to the International Regulations if he
determines that the alternative compliance standards of the contract
ing party are substantially the same as those of the United States
General
RULE 2
a Nothing in these Rules shall exonerate any vessel or the owner
master or crew thereof from the consequences of any neglect to
comply with these Rules or of the neglect of any precaution which may
be required by the ordinary practice of seamen or by the of the case
b In construing and complying with these Rules due regard shall be
had to all dangers of navigation and collision and to any including the limitations of the vessels involved which
may make a departure from these Rules necessary to danger
RULE 3
General Definitions
For the purpose of these Rules except where the context a The word Vessel includes every description of water craft and seaplanes used or capable
being used as a means of on water
b The term Powerdriven vessel means any vessel propelled c The term sailing vessel means any vessel under sail provided
that propelling machinery if fitted is not being used
d The term Vessel engaged in fishing means any vessel fishing
with nets lines trawls or other fishing apparatus which but does not include a vessel fishing with or other fishing apparatus which do not restrict
e The word Seaplane includes any aircraft designed to maneu
ver on the water
f The term Vessel not under command means a vessel which
through some exceptional circumstance is unable to maneuver as
required by these Rules and is therefore unable to keep out of the
way of another vessel
g The term Vessel restricted in her ability to maneuver means a
vessel which from the nature of her work is restricted in her ability to
maneuver as required by these Rules and is therefore unable to keep
out of the way of another vessel
INLAND
General
RULE 2
a Nothing in these Rules shall exonerate any vessel or the or crew thereof from the consequences of any neglect to
comply with these Rules or of the neglect of any precaution which
may be required by the ordinary practice of seamen or by the of the case
b In construing and complying with these Rules due regard shall
be had to all dangers of navigation and collision and to any including the limitations of the vessels may make a departure from these Rules
necessary to danger
RULE 3
General Definitions
For the purpose of these Rules and this Act except where the
context otherwise requires
a The word vessel includes every description of water craft and seaplanes used or capable of
being used as a means of on water
b The term powerdriven vessel means any vessel propelled c The term sailing vessel means any vessel under sail provided
that propelling machinery if fitted is not being used
d The term vessel engaged in fishing means any vessel fishing
with nets lines trawls or other fishing apparatus which but does not include a vessel fishing with or other fishing apparatus which do not restrict
e The word seaplane includes any aircraft designed to maneu
ver on the water
f The term vessel not under command means a vessel which
through some exceptional circumstance is unable to maneuver as
required by these Rules and is therefore unable to keep out of the
way of another vessel
g The term vessel restricted in her ability to maneuver means a
vessel which from the nature of her work is restricted in her ability to
maneuver as required by these Rules and is therefore unable to keep
out of the way of another vessel vessels restricted in their ability to
maneuver include but are not limited to
General
RULE The term Vessels restricted in their ability to maneuver shall
include but not be limited to
i a vessel engaged in laying servicing or picking up a navigation
mark submarine cable or pipeline
ii a vessel engaged in dredging surveying or underwater
operations
iii a vessel engaged in replenishment or transferring persons
provisions or cargo while underway
iv a vessel engaged in the launching or recovery of aircraft
v a vessel engaged in mine clearance operations
vi a vessel engaged in a towing operation such as severely
restricts the towing vessel and her tow in their ability to deviate
from their course
h The term vessel constrained by her draft means a power
driven vessel which because of her draft in relation to the and width of navigable water is severely restricted in her abili
ty to deviate from the course she is following
i The word underway means that a vessel is not at anchor or
made fast to the shore or aground
j The words length and breadth of a vessel means her and greatest breadth
k Vessels shall be deemed to be in sight of one another only when
one can be observed visually from the other
I The term restricted visibility means any condition in is restricted by fog mist falling snow heavy or any other similar causes
INLAND
General
RULE a vessel engaged in laying servicing or picking up a submarine cable or a vessel engaged in dredging surveying or a vessel engaged in
replenishment or transferring or cargo while a vessel engaged in the launching or recovery of v a vessel engaged in mine clearance operations and
vi a vessel engaged in a towing operation such as the towing vessel and her tow in their ability to deviate from
their course
h The word underway means that a vessel is not at anchor or
made fast to the shore or aground
i The words length and breadth of a vessel means her and greatest breadth
j Vessels shall be deemed to be in sight of one another only when
one can be observed visually from the other
k The term restricted visibility means any condition in is restricted by fog mist falling snow heavy or any other similar causes
General
BLANK
INLAND
General
RULE 3CONTINUED
I Western Rivers means the Mississippi River its Pass and Southwest Pass to the navigational dividing the high seas from harbors rivers and other
inland
waters of the United States and the Port AllenMorgan City and that part of the Atchafalaya River above its junction with
the Port AllenMorgan City Alternate Route including the Old River
and the Red River
m Great Lakes means the Great Lakes and their connecting and
tributary waters including the Calumet River as far as the Thomas J
OBrien Lock and Controlling Works between mile 326 and 327 the
Chicago River as far as the east side of the Ashland Avenue mile 321 and 322 and the Saint Lawrence River as far east
as the lower exit of Saint Lambert Lock
n Secretary means the Secretary of the department in which the
Coast Guard is operating
o Inland Waters means the navigable waters of the United
States shoreward of the navigational demarcation lines dividing the
high seas from harbors rivers and other inland waters of the United
States and the waters of the Great Lakes on the United States side of
the International Boundary
p Inland Rules or Rules mean the Inland Navigational Rules
and the annexes thereto which govern the conduct of vessels and
specify the lights shapes and sound signals that apply on and
q Regulations means the International Preventing Collisions at Sea 1972 including annexes currently in
force for the United States
Steering and Sailing Rules
PART BSTEERING AND SAILING RULES
Section IConduct of Vessels in Any
Condition of Visibility
RULE 4
Application
Rules in this Section apply to any condition of visibility
RULE 5
Lookout
Every vessel shall at all times maintain a proper lookout by sight and
hearing as well as by all available means appropriate in the pre
vailing circumstances and conditions so as to make a full appraisal of the
situation and of the risk of 12
INLAND
Steering and Sailing Rules
PART BSTEERING AND SAILING RULES
Subpart IConduct of Vessels in Any
Condition of Visibility
RULE 4
in this subpart apply in any condition of visibility
RULE 5
Lookout
Every vessel shall at all times maintain a proper lookout by sight and
heading as well as by all available means appropriate in the pre
vailing circumstances and conditions so as to make a full appraisal of the
situation and of the risk of 13
Steering and Sailing Rules
RULE 6
Safe Speed
Every vessel shall at all times proceed at a safe speed so that she
can take proper and effective action to avoid collision and be a distance appropriate to the prevailing circumstances In determining a safe speed
the following factors shall be among
those taken into account
a By all vessels
i the state of visibility
ii the traffic density including of fishing ves
sels
or any other vessels
iii the of the vessel with special reference
to stopping distance and turning ability in the prevailing
conditions
iv at night the presence of background light such as from
shore lights or from back scatter of her own lights
v the state of wind sea and current and the proximity of
navigational hazards
vi the draft in relation to the available depth of water
b Additionally by vessels with operational radar
i the efficiency and limitations of the radar
equipment
ii any constraints imposed by the radar range scale in use
iii the effect on radar detection of the sea state weather
and other sources of iv the possibility that small vessels ice and other floating
objects may not be detected by radar at an adequate range
v the number location and movement of vessels detected
by radar
vi the more exact assessment of the visibility that may be
possible when radar is used to determine the range of
vessels or other objects in the 14
INLAND
Steering and Sailing Rules
RULE 6
Safe Speed
Every vessel shall at all times proceed at a safe speed so that she
can take proper and effective action to avoid collision and be a distance appropriate to the prevailing circumstances In determining a safe speed
the following factors shall be among
those taken into account
a By all vessels
i the state of visibility
ii the traffic density including concentration of fishing ves
sels or any other vessels
iii the of the vessel with special reference
to stopping distance and turning ability in the prevailing
conditions
iv at night the presence of background light such as from
shore lights or from back scatter of her own lights
v the state of wind sea and current and the proximity of
navigational hazards
vi the draft in relation to the available depth of water
b Additionally by vessels with operational radar
i the efficiency and limitations of the radar
equipment
ii any constraints imposed by the radar range scale in use
iii the effect on radar detection of the sea state weather
and other sources of iv the possibility that small vessels ice and other floating
objects may not be detected by radar at an adequate range
v the number location and movement of vessels detected
by radar and
vi the more exact assessment of the visibility that may be
possible when radar is used to determine the range of ves
sels or other objects in the 15
Steering and Sailing Rules
RULE 7
Risk of Collision
a Every vessel shall use all available means appropriate to circumstances and conditions to determine if risk of If there is any doubt such risk
shall be deemed to exist
b Proper use shall be made of radar equipment if fitted including longrange scanning to obtain early warning of
risk of collision and radar plotting or equivalent systematic detected objects
c Assumptions shall not be made on the basis of especially scanty radar information
d In determining if risk of collision exists the following shall be among those taken into account
i such risk shall be deemed to exist if the compass heading of
an approaching vessel does not appreciably change
ii such risk may sometimes exist even when an appreciable
bearing change is evident particularly when approaching a
very large vessel or a tow or when approaching a vessel at
close range
INLAND
Steering and Sailing Rules
RULE 7
Risk of Every vessel shall use all available means appropriate to the
prevailing circumstances and conditions to determine if risk of
collision exists If there is any doubt such risk shall be deemed
to exist
b Proper use shall be made of radar equipment if fitted and
operational including longrange scanning to obtain early
warning of risk of collision and radar plotting or equivalent
systematic observation of detected objects
c Assumptions shall not be made on the basis of scanty
information especially scanty radar In determining if risk of collision exists the following considera
tions shall be among those taken into account
i such risk shall be deemed to exist if the compass heading of
an approaching vessel does not appreciably change
ii such risk may sometimes exist even when an appreciable
bearing change is evident particularly when approaching a
very large vessel or a tow or when approaching a vessel at
close range
Steering and Sailing Rules
RULE 8
Action to Avoid Collision
a Any action taken to avoid collision shall if the circumstances of
the case admit be positive made in ample time and with due regard
to the observance of good seamanship
b Any alteration of course andor speed to avoid collision shall if
the circumstances of the case admit be large enough to be to another vessel observing visually or by radar a succes
sion of small alterations of course andor speed should be avoided
c If there is sufficient sea room alteration of course alone may be
the most effective action to avoid a situation provided
that it is made in good time is substantial and does not result in
another situation
d Action taken to avoid collision with another vessel shall be such
as to result in passing at a safe distance The effectiveness of the
action shall be carefully checked until the other vessel is finally past
and clear
e If necessary to avoid collision or allow more time to assess a vessel shall slacken her speed or take all way off by
stopping or reversing her means of propulsion
f i A vessel which by any of these rules is required not to impede
the passage or safe passage of another vessel shall when required
by the circumstances of the case take early action to allow
sufficient sea room for the safe passage of the other vessel
ii A vessel required not to impede the passage or safe passage of
another vessel is not relieved of this obligation if approaching the
other vessel so as to involve risk of collision and shall when taking
action have full regard to the action which may be required by the
rules of this part
iii A vessel the passage of which is not to be impeded remains
fully obliged to comply with the rules of this part when the two
vessels are approaching one another so as to involve risk of
INLAND
Steering and Sailing Rules
RULE 8
Action to Avoid Collision
a Any action taken to avoid collision shall if the circumstances of
the case admit be positive made in ample time and with due regard
to the observance of good seamanship
b Any alteration of course or speed to avoid collision shall if
the circumstances of the case admit be large enough to be to another vessel observing visually or by radar a succes
sion of small alterations of course or speed should be avoided
c If there is sufficient sea room alteration of course alone may be
the most effective action to avoid a situation provided
that it is made in good time is substantial and does not result in
another situation
d Action taken to avoid collision with another vessel shall be such
as to result in passing at a safe distance The effectiveness of the
action shall be carefully checked until the other vessel is finally past
and clear
e If necessary to avoid collision or allow more time to assess a vessel shall slacken her speed or take all way off by
stopping or reversing her means of propulsion
f i A vessel which by any of these rules is required not to
impede the passage or safe passage of another vessel shall
when required by the circumstances of the case take early action
to allow sufficient sea room for the safe passage of the other
vessel
ii A vessel required not to impede the passage or safe pas
sage of another vessel is not relieved of this obligation if
approaching the other vessel so as to involve risk of collision and
shall when taking action have full regard to the action
which may be required by the rules of this part
iii A vessel the passage of which is not to be impeded remains
fully obliged to comply with the rules of this part when the two
vessels are approaching one another so as to involve risk of
Steering and Sailing Rules
RULE 9
Narrow Channels
a i A vessel proceeding along the course of a narrow channel or
fairway shall keep as near to the outer limit of the channel or
fairway which lies on her starboard side as is safe and practicable
ii paragraph ai and Rule 14a a powerdriven
vessel operating in narrow channels or fairways on the Great
Lakes Western Rivers or waters specified by the Secretary and
proceeding downbound with a following current shall have the right
ofway over an upbound vessel shall propose the manner and
place of passage and shall initiate the maneuvering signals
prescribed by rule 34ai as appropriate The vessel proceeding
upbound against the current shall hold as necessary to permit safe
passing
b A vessel of less than 20 meters in length or a sailing vessel shall
not impede the passage of a vessel which can safely navigate only
within a narrow channel or fairway
c A vessel engaged in fishing shall not impede the passage of any
other vessel navigating within a narrow channel or fairway
d A vessel shall not cross a narrow channel or fairway if such the passage of a vessel which can safely navigate only within
such channel or fairway The latter vessel may use the sound in Rule 34d if in doubt as to the intention of the e i In a narrow channel or fairway
when overtaking can take place
only if the vessel to be overtaken has to take action to permit safe
passing the vessel intending to overtake shall indicate her
intention by sounding the appropriate signal pre scribed in Rule
34c The vessel to be overtaken shall if in agreement sound
the appropriate signal prescribed in Rule 34c and take steps to
permit safe passing If in doubt she may sound the signals
prescribed in Rule 34d
ii This Rule does not relieve the overtaking vessel of her oblig
ation under Rule 13
f A vessel nearing a bend or an area of a narrow channel or fairway
where other vessels may be obscured by an intervening obstruction with particular alertness and caution and shall sound signal prescribed in Rule
g Any vessel shall if the circumstances of the case admit in a narrow channel
INLAND
Steering and Sailing Rules
RULE 9
Narrow Channels
a i A vessel proceeding along the course of a narrow channel or
fairway shall keep as near to the outer limit of the channel or fair
way which lies on her starboard side as is safe and practicable
ii paragraph ai and Rule 14a a power
driven vessel operating in narrow channels or fairways on the
Great Lakes Western Riversor waters specified by the Secretary
and proceeding downbound with a following current shall have the
rightofway over an upbound vessel shall pro pose the manner
and place of passage and shall initiate the maneuvering signals
prescribed by Rule 34ai as appropriate The vessel proceeding
upbound against the current shall hold as necessary to permit safe
passing
b A vessel of less than 20 meters in length or a sailing vessel shall
not impede the passage of a vessel that can safely navigate only
within a narrow channel or fairway
c A vessel engaged in fishing shall not impede the passage of any
other vessel navigating within a narrow channel or fairway
d A vessel shall not cross a narrow channel or fairway if such
crossing impedes the passage of a vessel which can safely navigate
only within that channel or fairway The latter vessel shall use the
danger signal prescribed in Rule 34d if in doubt as to the intention of
the crossing vessel
e i In a narrow channel or fairway when overtaking the vessel
intending to overtake shall indicate her intention by sounding the
appropriate signal prescribed in Rule 34c and take steps to
permit safe passing The overtaken vessel if in agreement shall
sound the same signal If in doubt she shall sound the danger
signal prescribed in Rule 34d
ii This Rule does not relieve the overtaking vessel of her oblig
ation under Rule 13
f A vessel nearing a bend or an area of a narrow channel or
fairway where other vessels may be obscured by an shall navigate with particular alertness and caution and
shall sound the appropriate signal prescribed in Rule 34e
g Every vessel shall if the circumstances of the case admit in a narrow channel
Steering and Sailing Rules
RULE 10
Traffic Separation Schemes
a This Rule applies to traffic separation schemes adopted by and does not relieve any vessel of her obligation under any
other rule
b A vessel using a traffic separation scheme shall
i proceed in the appropriate traffic lane in the general direction of
traffic flow for that lane
ii so far as practicable keep clear of a traffic separation line or
separation zone
iii normally join or leave a traffic lane at the termination of the
lane but when joining or leaving from either side shall do so at as
small an angle to the general direction of traffic flow as
practicable
c A vessel shall so far as practicable avoid crossing traffic lanes
but if obliged to do so shall cross on a heading as nearly as right angles to the general direction of traffic flow
d i A vessel shall not use an inshore traffic zone when she can
safely use the appropriate traffic lane within the adjacent traffic
separation scheme However vessels of less than 20 meters in
length sailing vessels and vessels engaged in fishing may use
the inshore traffic zone
ii subparagraph di a vessel may use an
inshore traffic zone when en route to or from a port offshore
installation or structure pilot station or any other place situated
within the inshore traffic zone or to avoid immediate danger
e A vessel other than a crossing vessel or a vessel joining or leaving
a lane shall not normally enter a separation zone or cross a except
i in cases of emergency to avoid immediate danger
ii to engage in fishing within a separation zone
f A vessel navigating in areas near the terminations of traffic shall do so with particular caution
g A vessel shall so far as practicable avoid anchoring in a tion scheme or in areas near its h A vessel not using a traffic separation scheme
shall avoid it by as
wide a margin as is practicable
i A vessel engaged in fishing shall not impede the passage of any
vessel following a traffic lane
j A vessel of less than 20 meters in length or a sailing vessel shall not
impede the safe passage of a powerdriven vessel following a traffic lane
INLAND
Steering and Sailing Rules
RULE 10
Traffic Separation Schemes
a This Rule applies to traffic separation schemes and does not
relieve any vessel of her obligation under any other Rule
b A vessel using a traffic separation scheme shall
i proceed in the appropriate traffic lane in the general direction of
traffic flow for that lane
ii so far as practicable keep clear of a traffic separation line or
separation zone
iii normally join or leave a traffic lane at the termination of the
lane but when joining or leaving from either side shall do so at as
small an angle to the general direction of traffic flow as practicable
c A vessel shall so far as practicable avoid crossing traffic lanes but
if obliged to do so shall cross on a heading as nearly as practicable at
right angles to the general direction of traffic flow
d i A vessel shall not use an inshore traffic zone when she can
safely use the appropriate traffic lane within the adjacent traffic
separation scheme However vessels of less than 20 meters in
length sailing vessels and vessels engaged in fishing may use the
inshore traffic zone
ii subparagraph di a vessel may use an
inshore traffic zone when en route to or from a port offshore
installation or structure pilot station or any other place situated
within the inshore traffic zone or to avoid immediate danger
e A vessel other than a crossing vessel or a vessel joining or leaving
a lane shall not normally enter a separation zone or cross a except
i in cases of emergency to avoid immediate danger or
ii to engage in fishing within a separation zone
f A vessel navigating in areas near the terminations of schemes shall do so with particular caution
g A vessel shall so far as practicable avoid anchoring in a scheme or in areas near its h A vessel not using a traffic separation scheme shall
avoid it by as
wide a margin as is practicable
i A vessel engaged in fishing shall not impede the passage of any
vessel following a traffic lane
j A vessel of less than 20 meters in length or a sailing vessel shall not
impede the safe passage of a powerdriven vessel following a traffic lane
Steering and Sailing Rules
RULE k A vessel restricted in her ability to maneuver when engaged in
an operation for the maintenance of safety of navigation in a scheme is exempted from complying with this Rule to the
extent necessary to carry out the operation
I A vessel restricted in her ability to maneuver when engaged in
an operation for the laying servicing or picking up of a within a traffic separation scheme is exempted with this Rule to the extent necessary to
carry out 24
INLAND
Steering and Sailing Rules
RULE k A vessel restricted in her ability to maneuver when engaged in
an operation for the maintenance of safety of navigation in a scheme is exempted from complying with this Rule to the
extent necessary to carry out the operation
I A vessel restricted in her ability to maneuver when engaged in
an operation for the laying servicing or picking up of a within a traffic separation scheme is exempted with this Rule to the extent necessary to
carry out 25
Steering and Sailing Rules
Section IIConduct of Vessels in Sight of
One Another
RULE 11
Application
Rules in this section apply to vessels in sight of one another
RULE 12
Sailing Vessels
a When two sailing vessels are approaching one another so as to
involve risk of collision one of them shall keep out of the way of the
other as follows
i when each has the wind on a different side the vessel which
has the wind on the pod side shall keep out of the way of the
other
ii when both have the wind on the same side the vessel which
is to windward shall keep out of the way of the vessel which is to
leeward
iii if a vessel with the wind on the port side sees a vessel to
windward and cannot determine with certainty whether the other
vessel has the wind on the port or on the starboard side she
shall keep out of the way of the other
b For the purposes of this Rule the windward side shall be
deemed to be the side opposite to that on which the mainsail is
carried or in the case of a squarerigged vessel the side opposite to
that on which the largest foreandaft sail is carried
INLAND
Steering and Sailing Rules
Subpart IIConduct of Vessels in Sight of
One Another
RULE 11
Application
Rules in this subpart apply to vessels in sight of one another
RULE 12
Sailing Vessels
a When two sailing vessels are approaching one another so as to
involve risk of collision one of them shall keep out of the way of the
other as follows
i when each has the wind on a different side the vessel which
has the wind on the port side shall keep out of the way of the
other
ii when both have the wind on the same side the vessel which
is to windward shall keep out of the way of the vessel which is to
leeward and
iii if a vessel with the wind on the port side sees a vessel to
windward and cannot determine with certainty whether the other
vessel has the wind on the port or on the starboard side she
shall keep out of the way of the other
b For the purpose of this Rule the windward side shall be deemed
to be the side opposite to that on which the mainsail is carried or in
the case of a squarerigged vessel the side opposite to that on which
the largest foreandaft sail is carried
Steering and Sailing Rules
RULE 13
Overtaking
a anything contained in the Rules of Part B
Sections I and 11 any vessel overtaking any other shall keep out of
the way of the vessel being overtaken
b A vessel shall be deemed to be overtaking when coming up with
another vessel from a direction more than 225 degrees abaft her
beam that is in such a position with reference to the vessel she that at night she would be able to see only the sternlight of
that vessel but neither of her sidelights
c When a vessel is in any doubt as to whether she is she shall assume that this is the case and act accordingly
d Any subsequent alteration of the bearing between the two
vessels shall not make the overtaking vessel a crossing vessel within
the meaning of these Rules or relieve her of the duty of keeping clear
of the overtaken vessel until she is finally past and clear
INLAND
Steering and Sailing Rules
RULE 13
Overtaking
a anything contained in Rules 4 through 18 any
vessel overtaking any other shall keep out of the way of the vessel
being overtaken
b A vessel shall be deemed to be overtaking when coming up with
another vessel from a direction more than 225 degrees abaft her
beam that is in such a position with reference to the vessel she that at night she would be able to see only the sternlight of
that vessel but neither of her sidelights
c When a vessel is in any doubt as to whether she is she shall assume that this is the case and act accordingly
d Any subsequent alteration of the bearing between the two
vessels shall not make the overtaking vessel a crossing vessel within
the meaning of these Rules or relieve her of the duty of keeping clear
of the overtaken vessel until she is finally past and clear
Steering and Sailing Rules
RULE 14
Headon Situation
a When two powerdriven vessels are meeting on reciprocal or
nearly reciprocal courses so as to involve risk of collision each shall
alter her course to starboard so that each shall pass on the port side
of the other
b Such a situation shall be deemed to exist when a vessel sees
the other ahead or nearly ahead and by night she could see the
masthead lights of the other in a line or nearly in a line andor and by day she observes the corresponding aspect of the
other vessel
c When a vessel is in any doubt as to whether such a she shall assume that it does exist and act RULE 15
Crossing Situation
When two powerdriven vessels are crossing so as to involve risk
of collision the vessel which has the other on her own starboard side
shall keep out of the way and shall if the circumstances of the case
admit avoid crossing ahead of the other vessel
INLAND
Steering and Sailing Rules
RULE 14
Headon Situation
a Unless otherwise agreed when two powerdriven vessels are
meeting on reciprocal or nearly reciprocal courses so as to involve
risk of collision each shall alter her course to starboard so that each
shall pass on the port side of the other
b Such a situation shall be deemed to exist when a vessel sees the
other ahead or nearly ahead and by night she could see the mast
head lights of the other in a line or nearly in a line or both by day she observes the corresponding aspect of the other ves
c When a vessel is in any doubt as to whether such a she shall assume that it does exist and act accordingly
d paragraph a of this Rule a power driven
vessel operating on the Great Lakes Western Rivers or by the Secretary and proceeding downbound with a
following current shall have the rightofway over an upbound vessel
shall propose the manner of passage and shall initiate signals prescribed by Rule 34a1 as RULE 15
Crossing Situation
a When two powerdriven vessels are crossing so as to involve
risk of collision the vessel which has the other on her starboard side
shall keep out of the way and shall If the circumstances of the case
admit avoid crossing ahead of the other vessel
b paragraph a on the Great Lakes or water specified by the Secretary a vessel crossing a river
shall keep out of the way of a powerdriven vessel ascending or
descending the river
Steering and Sailing Rules
RULE 16
Action by Giveway Vessel
Every vessel which is directed to keep out of the way of shall so far as possible take early and substantial action to
keep well clear
RULE 17
Action by Standon Vessel
a i Where one of two vessels is to keep out of the way the other
shall keep her course and speed
ii The latter vessel may however take action to avoid collision
by her maneuver alone as soon as it becomes apparent to her
that the vessel required to keep out of the way is not taking
appropriate action in compliance with these Rules
b When from any cause the vessel required to keep her course
and speed finds herself so close that collision cannot be avoided by
the action of the giveway vessel alone she shall take such action as
will best aid to avoid collision
c A powerdriven vessel which takes action in a crossing situation
in accordance with subparagraph aii of this Rule to avoid another powerdriven vessel shall if the circumstances of the
case admit not alter course to port for a vessel on her own port side
d This Rule does not relieve the giveway vessel of her obligation
to keep out of the way
INLAND
Steering and Sailing Rules
RULE 16
Action by Giveway Vessel
Every vessel which is directed to keep out of the way of shall so far as possible take early and substantial action to
keep well clear
RULE 17
Action by Standon Vessel
a i Where one of two vessels is to keep out of the way the other
shall keep her course and speed
ii The latter vessel may however take action to avoid collision
by her maneuver alone as soon as it becomes apparent to her
that the vessel required to keep out of the way is not taking
appropriate action in compliance with these Rules
b When from any cause the vessel required to keep her course
and speed finds herself so close that collision cannot be avoided by
the action of the giveway vessel alone she shall take such action as
will best aid to avoid collision
c A powerdriven vessel which takes action in a crossing situation
in accordance with subparagraph aii of this Rule to avoid another powerdriven vessel shall if the circumstances of the
case admit not alter course to port for a vessel on her own port side
d This Rule does not relieve the giveway vessel of her obligation
to keep out of the way
Steering and Sailing Rules
RULE 18
Between Vessels
Except where Rules 9 10 and 13 otherwise require
a A powerdriven vessel underway shall keep out of the way of
i a vessel not under command
ii a vessel restricted in her ability to maneuver
iii a vessel engaged in fishing and
iv a sailing vessel
b A sailing vessel underway shall keep out of the way of
i a vessel not under command
ii a vessel restricted in her ability to maneuver and
iii a vessel engaged in fishing
c A vessel engaged in fishing when underway shall so far as
possible keep out of the way of
i a vessel not under command
ii a vessel restricted in her ability to maneuver
di A vessel other than a vessel not under command or a vessel
restricted in her ability to maneuver shall if the circumstances of
the case admit avoid impeding the safe passage of a vessel
constrained by her draft exhibiting the signals in Rule 28
ii A vessel constrained by her draft shall navigate with particular
caution having full regard to her special condition
e A seaplane on the water shall in general keep well clear of all
vessels and avoid impeding their navigation In where risk of collision exists she shall comply with the
Rules of this Part
INLAND
Steering and Sailing Rules
RULE 18
Between Vessels
Except where Rules 9 10 and 13 otherwise require
a A powerdriven vessel underway shall keep out of the way of
i a vessel not under command
ii a vessel restricted in her ability to maneuver
iii a vessel engaged in fishing and
iv a sailing vessel
b A sailing vessel underway shall keep out of the way of
i a vessel not under command
ii a vessel restricted in her ability to maneuver and
iii a vessel engaged in fishing
c A vessel engaged in fishing when underway shall so far as
possible keep out of the way of
i a vessel not under command and
ii a vessel restricted in her ability to maneuver
d A seaplane on the water shall in general keep well clear of all
vessels and avoid impeding their navigation In how
ever where risk of collision exists she shall comply with the Rules
of this Part
Steering and Sailing IllConduct of Vessels in Restricted
Visibility
RULE 19
Conduct of Vessels in Restricted Visibility
a This Rule applies to vessels not in sight of one another in or near an area of restricted visibility
b Every vessel shall proceed at a safe speed adapted to circumstances and conditions of restricted visibility A power
driven vessel shall have her engines ready for immediate maneuver
c Every vessel shall have due regard to the and conditions of restricted visibility when Rules of Section I of this Part
d A vessel which detects by radar alone the presence of shall determine if a situation is developing andor
risk of collision exists If so she shall take avoiding action in ample
time provided that when such action consists of an alteration of course
so far as possible the following shall be avoided
i an alteration of course to port for a vessel forward of the
beam other than for a vessel being overtaken and
ii an alteration of course toward a vessel abeam or abaft the
beam
e Except where it has been determined that a risk of collision does
not exist every vessel which hears apparently forward of her beam the
fog signal of another vessel or which cannot avoid a with another vessel forward of her beam shall reduce her
speed to the minimum at which she can be kept on course She shall if
necessary take all her way off and in any event navigate with until danger of collision is over
INLAND
Steering and Sailing IllConduct of Vessels in Restricted
Visibility
RULE 19
Conduct of Vessels in Restricted Visibility
a This Rule applies to vessels not in sight of one another in or near an area of restricted visibility
b Every vessel shall proceed at a safe speed adapted to circumstances and conditions of restricted visibility A power
driven vessel shall have her engines ready for immediate maneuver
c Every vessel shall have due regard to the and conditions of restricted visibility when Rules 4 through 10
d A vessel which detects by radar alone the presence of shall determine if a situation is developing or
risk of collision exists If so she shall take avoiding action in ample
time provided that when such action consists of an alteration of course
so far as possible the following shall be avoided
i an alteration of course to port for a vessel forward of the
beam other than for a vessel being overtaken and
ii an alteration of course toward a vessel abeam or abaft the
beam
e Except where it has been determined that a risk of not exist every vessel which hears apparently forward of her
beam the fog signal of another vessel or which cannot avoid a situation with another vessel forward of her beam shall reduce
her speed to the minimum at which she can be kept on course She
shall if necessary take all her way off and in any event navigate with
extreme caution until danger of collision is over
Lights and Shapes
PART CLIGHTS AND SHAPES
RULE 20
Application
a Rules in this Part shall be complied with in all weathers
b The Rules concerning lights shall be complied with from sunset
to sunrise and during such times no other lights shall be such lights as cannot be mistaken for the lights specified in
these Rules or do not impair their visibility or distinctive character or
interfere with the keeping of a proper lookout
c The lights prescribed by these Rules shall if carried also be
exhibited from sunrise to sunset in restricted visibility and may be
exhibited in all other circumstances when it is deemed necessary
d The Rules concerning shapes shall be complied with by day
e The lights and shapes specified in these Rules shall comply with
the provisions of Annex I of these 38
INLAND
Lights and Shapes
PART CLIGHTS AND SHAPES
RULE 20
Application
a Rules in this Part shall be complied with in all weathers
b The Rules concerning lights shall be complied with from sunset
to sunrise and during such times no other lights shall be such lights as cannot be mistaken for the lights specified in
these Rules or do not impair their visibility or distinctive character or
interfere with the keeping of a proper lookout
c The lights prescribed by these Rules shall if carried also be
exhibited from sunrise to sunset in restricted visibility and may be
exhibited in all other circumstances when it is deemed necessary
d The Rules concerning shapes shall be complied with by day
e The lights and shapes specified in these Rules shall comply with
the provisions of Annex I of these Rules
Lights and Shapes
RULE 21
Definitions
a Masthead light means a white light placed over the fore and
aft centerline of the vessel showing an unbroken light over an arc of
the horizon of 225 degrees and so fixed as to show the light from
right ahead to 225 degrees abaft the beam on either side of b Sidelights mean a green light on the starboard side and a
red light on the port side each showing an unbroken light over an arc
of the horizon of 1125 degrees and so fixed as to show the light
from right ahead to 225 degrees abaft the beam on its In a vessel of less than 20 meters in length the sidelights may
be combined in one lantern carried on the fore and aft centerline of
the vessel
c Sternlight means a white light placed as nearly as the stern showing an unbroken light over an arc of the horizon of
135 degrees and so fixed as to show the light 675 degrees from
right aft on each side of the vessel
d Towing light means a yellow light having the as the sternlight defined in paragraph c of this
Rule
e Allround light means a light showing an unbroken light over
an arc of the horizon of 360 degrees
f Flashing light means a light flashing at regular intervals at a
frequency of 120 flashes or more per minute
INLAND
Lights and Shapes
RULE 21
Definitions
a Masthead light means a white light placed over the fore and
aft centerline of the vessel showing an unbroken light over an arc of
the horizon of 225 degrees and so fixed as to show the light from
right ahead to 225 degrees abaft the beam on either side of the
vessel except that on a vessel of less than 12 meters in length the
masthead light shall be placed as nearly as practicable to the fore
and aft centerline of the vessel
b Sidelights mean a green light on the starboard side and a red
light on the port side each showing an unbroken light over an arc of
the horizon of 1125 degrees and so fixed as to show the light from
right ahead to 225 degrees abaft the beam on its respective side On
a vessel of less than 20 meters in length the sidelights may be
combined in one lantern carried on the fore and aft centerline of the
vessel except that on a vessel of less than 12 meters in when combined in one lantern shall be placed as nearly to the fore and aft centerline of
the vessel
c Sternlight means a white light placed as nearly as the stern showing an unbroken light over an arc of the horizon of
135 degrees and so fixed as to show the light 675 degrees from right
aft on each side of the vessel
d Towing light means a yellow light having the as the sternlight defined in paragraph c of this
Rule
e Allround light means a light showing an unbroken light over
an arc of the horizon of 360 degrees
f Flashing light means a light flashing at regular intervals at a
frequency of 120 flashes or more per minute
g Special flashing light means a yellow light flashing at at a frequency of 50 to 70 flashes per minute placed as far
forward and as nearly as practicable on the fore and aft centerline of
the tow and showing an unbroken light over an arc of the horizon of
not less than 180 degrees nor more than 225 degrees and so fixed as
to show the light from right ahead to abeam and no more than 225
degrees abaft the beam on either side of the vessel
Lights and Shapes
RULE 22
Visibility of Lights
The lights prescribed in these Rules shall have an intensity
as specified in Section 8 of Annex I to these Rules so as to be
visible at the following minimum ranges
a In a vessel of 50 meters or more in length
a masthead light 6 miles
a sidelight 3 miles
a sternlight 3 miles
a towing light 3 miles
a white red green or yellow allround light 3 miles and
b In a vessel of 12 meters or more in length but less than 50
meters in length
a masthead light 5 miles except that where the length of the
vessel is less than 20 meters 3 miles
a sidelight 2 miles
a sternlight 2 miles
a towing light 2 miles
a white red green or yellow allround light 2 miles and
c In a vessel of less than 12 meters in length
a masthead light 2 miles
a sidelight 1 mile
a sternlight 2 miles
a towing light 2 miles
a white red green or yellow allround light 2 miles and
d In an partly submerged vessel or object being
towed
a white allround light 3 miles
INLAND
Lights and Shapes
RULE 22
Visibility of Lights
The lights prescribed in these Rules shall have an intensity as
specified in Annex I to these Rules so as to be visible at the
following minimum ranges
a In a vessel of 50 meters or more in length
a masthead light 6 miles
a sidelight 3 miles
a sternlight 3 miles
a towing light 3 miles
a white red green or yellow allround light 3 miles and
a special flashing light 2 miles
b In a vessel of 12 meters or more in length but less than 50
meters in length
a masthead light 5 miles except that where the length of the
vessel is less than 20 meters 3 miles
a sidelight 2 miles
a sternlight 2 miles
a towing light 2 miles
a white red green or yellow allround light 2 miles and
a special flashing light 2 miles
c In a vessel of less than 12 meters in length
a masthead light 2 miles
a sidelight 1 mile
a sternlight 2 miles
a towing light 2 miles
a white red green or yellow allround light 2 miles and
a special flashing light 2 miles
d In an partly submerged vessel or object being
towed
a white allround light 3 miles
Lights and Shapes
RULE 23
Powerdriven Vessels Underway
a A powerdriven vessel underway shall exhibit
i a masthead light forward
ii a second masthead light abaft of and higher than the forward
one except that a vessel of less than 50 meters in length shall
not be obliged to exhibit such light but may do so
iii sidelights
iv a stern light
Powerdriven vessel underway Same for Inland
INLAND
Lights and Shapes
RULE 23
Powerdriven Vessels Underway
a A powerdriven vessel underway shall exhibit
i a masthead light forward except that a vessel of less than 20
meters in length need not exhibit this light forward of amidships
but shall exhibit it as far forward as is practicable
ii a second masthead light abaft of and higher than the forward
one except that a vessel of less than 50 meters in length shall
not be obliged to exhibit such light but may do so
iii sidelights and
iv a stern light
Powerdriven vessel than 50 meters in length
Same for 45
Lights and Shapes
RULE b An aircushion vessel when operating in the shall in addition to the lights prescribed in paragraph a of
this Rule exhibit an allround flashing yellow vessel when operating in the mode
vessel less than 50 meters in length
INLAND
Lights and Shapes
RULE b An aircushion vessel when operating in the shall In addition to the lights prescribed in paragraph a of this
Rule exhibit an allround flashing yellow light where it can best be
seen
Aircushion vessel when operating in the displacement mode
vessel less than 50 meters in length
Lights and Shapes
RULE i A powerdriven vessel of less than 12 meters in length may in
lieu of the lights prescribed in paragraph a of this Rule exhibit
an allround white light and sidelights
ii a powerdriven vessel of less than 7 meters in length whose
maximum speed does not exceed 7 knots may in lieu of the
lights prescribed in paragraph a of this Rule exhibit an all
round white light and shall if practicable also exhibit sidelights
iii the masthead light or allround white light on a powerdriven
vessel of less than 12 meters in length may be displaced from
the fore and aft centerline of the vessel if centerline fitting is not
practicable provided that the sidelights are combined in one
lantern which shall be carried on the fore and aft centerline of
the vessel or located as nearly as practicable in the same fore
and aft line as the masthead light or the allround white vessel of less than 7 meters in length whose
maximum speed does not exceed 7 knots
INLAND
Lights and Shapes
RULE A powerdriven vessel of less than 12 meters in length may in
lieu of the lights prescribed in paragraph a of this Rule
exhibit an allround white light and Powerdriven vessel of less than 12 meters in length Same for
Lights and Shapes
Blank
Lights and Shapes
RULE d A powerdriven vessel when operating on the Great Lakes
may carry an allround white light in lieu of the second and sternlight prescribed in paragraph a of this Rule The
light shall be carried in the position of the second masthead light and
be visible at the same minimum range
Powerdriven vessel on Great Lakes
Lights and Shapes
RULE 24
Towing and Pushing
a A powerdriven vessel when towing shall exhibit
i instead of the light prescribed in Rule 23ai or aii two
masthead lights in a vertical line When the length of the tow
measuring from the stern of the towing vessel to the after end
of the tow exceeds 200 meters three such lights in a vertical
line
ii sidelights
iii a sternlight
iv a towing light in a vertical line above the sternlight
v when the length of the tow exceeds 200 meters a diamond
shape where it can best be seen
Powerdriven vessel towing vessel less than 50
meters in length length of tow exceeds 200 meters
Same for Inland
INLAND
Lights and Shapes
RULE b When a pushing vessel and a vessel being pushed ahead are
rigidly connected in a composite unit they shall be regarded as a power
driven vessel and exhibit the lights prescribed in Rule 23
Composite unit than 50 meters in length
Same for A powerdriven vessel when towing shall exhibit
i instead of the light prescribed in Rule 23ai or aii two
masthead lights in a vertical line When the length of the tow
measuring from the stern of the towing vessel to the after end
of the tow exceeds 200 meters three such lights in a vertical
line
ii sidelights
iii a sternlight
iv a towing light in a vertical line above the sternlight
v when the length of the tow exceeds 200 meters a diamond
shape where it can best be seen
Powerdriven vessel towing vessel less than 50
meters in length length of tow 200 meters or less Same for
Lights and Shapes
RULE 24
Towing and Pushing
b When a pushing vessel and a vessel being pushed ahead are
rigidly connected in a composite unit they shall be regarded as vessel and exhibit the lights prescribed in Rule 23
Composite unit underway Same for Inland
INLAND
Lights and Shapes
RULE b When a pushing vessel and a vessel being pushed ahead are
rigidly connected in a composite unit they shall be regarded as vessel and exhibit the lights prescribed in Rule 23
Composite unit than 50 meters in length
Same for 55
Lights and Shapes
RULE 24 CONTINUED
c A powerdriven vessel when pushing ahead or except in the case of a composite unit shall exhibit
i instead of the light prescribed in Rule 23ai or aii two
masthead lights in a vertical line
ii sidelights
iii a stern vessel pushing ahead or towing vessel less than 50 meters in length
INLAND
Lights and Shapes
RULE c A powerdriven vessel when pushing ahead or except as required by paragraphs b and i of this Rule
shall exhibit
i instead of the light prescribed either in Rule 23ai or
23aii two masthead lights in a vertical line
ii ii sidelights and
iii two towing lights in a vertical vessel pushing ahead or towing alongside towing
vessel less than 50 meters in length
Lights and Shapes
RULE d A powerdriven vessel to which paragraph a or c of this
Rule apply shall also comply with Rule vessel towing of tow 200 meters or less The
after masthead light is optional for vessel less than 50 meters in length
Same for Inland
e A vessel or object being towed other than those mentioned in
paragraph g of this Rule shall exhibit
i sidelights
ii a when the length of the tow exceeds 200 meters a diamond
shape where it can best be or object being towedlength of tow exceeds 200 meters Same 58
INLAND
Lights and Shapes
RULE d A powerdriven vessel to which paragraphs a or c of this Rule
apply shall also comply with Rule 23ai and vessel towing of tow 200 meters or less
When masthead lights for towing or pushing are exhibited aft a ight is required Same for
e A vessel or object other than those referred to in paragraph g of
this Rule being towed shall exhibit
i sidelights
ii a sternlight and
iii when the length of the tow exceeds 200 meters a diamond
shape where it can best be being towedlength of tow 200 meters or less Same 59
Lights and Shapes
RULE f Provided that any number of vessels being towed alongside
or pushed in a group shall be lighted as one vessel
i a vessel being pushed ahead not being part of a composite
unit shall exhibit at the forward end sidelights
ii a vessel being towed alongside shall exhibit a sternlight and
at the forward end Vessel being pushed ahead not being part of a composite unit
Vessel being towed 60
INLAND
Lights and Shapes
RULE f Provided that any number of vessels being towed alongside
or pushed in a group shall be lighted as one vessel
i a vessel being pushed ahead not being part of a composite
unit shall exhibit at the forward end sidelights and a special
flashing light and
ii a vessel being towed alongside shall exhibit a sternlight
and at the forward end Vessel being pushed ahead not being part of a composite unit
Vessel being towed alongside
Lights and Shapes
RULE An partly submerged vessel or object of such vessels or objects being towed shall exhibit
i if it is less than 25 meters in breadth one allround white light
at or near the forward end and one at or near the after end
except that dracones need not exhibit a light at or near the
forward end
ii if it is 25 meters or more in breadth two additional allround
white lights at or near the extremities of its breadth iii if it
exceeds 100 meters in length additional allround white lights
between the lights prescribed in subparagraphs i and ii so
that the distance between the lights shall not exceed 100
meters
iv a diamond shape at or near the aftermost extremity of the
last vessel or object being towed and if the length of the tow
exceeds 200 meters an additional diamond shape where it can
best be seen and located as far forward as is Dracone being towed
INLAND
Lights and Shapes
RULE g An partly submerged vessel or object being
towed shall exhibit
i if it is less than 25 meters in breadth one allround white
light at or near each end
ii if it is 25 meters or more in breadth four allround white
lights to mark its length and breadth
iii if it exceeds 100 meters in length additional allround
white lights between the lights prescribed in subparagraphs i
and ii so that the distance between the lights shall not exceed
100 meters Provided That any vessels or objects being towed
alongside each other shall be lighted as one vessel or object
iv a diamond shape at or near the aftermost extremity of the
last vessel or object being towed and
v the towing vessel may direct a searchlight in the direction
of the tow to indicate its presence to an approaching vessel
Lights and Shapes
RULE h Where from any sufficient cause it is impracticable for a vessel
or object being towed to exhibit the lights or shapes prescribed in
paragraph e or g of this Rule all possible measures shall be
taken to light the vessel or object towed or at least to indicate the
presence of such vessel or object
INLAND
Lights and Shapes
RULE h Where from any sufficient cause it is impracticable for a
vessel or object being towed to exhibit the lights prescribed in
paragraph e or g of this Rule all possible measures shall be
taken to light the vessel or object towed or at least to indicate the
presence of the unlighted vessel or object
Lights and Shapes
RULE BLANK
INLAND
Lights and Shapes
RULE i paragraph c on the Western Rivers except
below the Huey P Long Bridge on the Mississippi River and on
waters specified by the Secretary a powerdriven vessel when
pushing ahead or towing alongside except as paragraph b exhibit
i sidelights and
ii two towing lights in a vertical line
pushing ahead on Western Rivers
above the Huey P Long Bridge on the Mississippi River
Lights and Shapes
RULE i Where from any sufficient cause it is impracticable for a
vessel not normally engaged in towing operations to display the
lights prescribed in paragraph a or c of this Rule such vessel
shall not be required to exhibit those lights when engaged in vessel in distress or otherwise in need of assistance All
possible measures shall be taken to indicate the nature of between the towing vessel and the vessel being towed
as authorized by Rule 36 in particular by illuminating the towline
INLAND
Lights and Shapes
RULE j Where from any sufficient cause it is impracticable for a
vessel not normally engaged in towing operations to display the
lights prescribed by paragraph a c ori of this Rule such vessel
shall not be required to exhibit those lights when engaged in vessel in distress or otherwise in need of assistance All
possible measures shall be taken to indicate the nature of between the towing vessel and the vessel The searchlight authorized by Rule 36 may be
used to
illuminate the tow
INTERNATIONAL
Lights and Shapes
RULE 25
Sailing Vessels Underway and Vessels Under Oars
a A sailing vessel underway shall exhibit
i sidelights
ii a stern light
b In a sailing vessel of less than 20 meters in length the in paragraph a of this Rule may be combined in one
lantern carried at or near the top of the mast where it can best be
seen
Sailing vessel underway Same for Inland
INLAND
Lights and Shapes
RULE 25
Sailing Vessels Underway and Vessels Under Oars
a A sailing vessel underway shall exhibit
i sidelights and
iia stern light
b In a sailing vessel of less than 20 meters in length the in paragraph a of this Rule may be combined in one
lantern carried at or near the top of the mast where it can best be
seen
Sailing vessel than 20 meters in length
Same for 71
INTERNATIONAL
Lights and Shapes
RULE c A sailing vessel underway may in addition to the in paragraph a of this Rule exhibit at or near the top of
the mast where they can best be seen two allround lights in a
vertical line the upper being red and the lower green but these
lights shall not be exhibited in conjunction with the combined by paragraph b of this Rule
Sailing vessel underway Same for Inland
INLAND
Lights and Shapes
RULE c A sailing vessel underway may in addition to the in paragraph a of this Rule exhibit at or near the top of
the mast where they can best be seen two allround lights in a
vertical line the upper being red and the lower green but these
lights shall not be exhibited in conjunction with the combined by paragraph b of this Rule
INTERNATIONAL
Lights and Shapes
RULE i A sailing vessel of less than 7 meters in length shall if
practicable exhibit the lights prescribed in paragraph a or b
of this Rule but if she does not she shall have ready at hand
an electric torch or lighted lantern showing a white light which
shall be exhibited in sufficient time to prevent collision
ii A vessel under oars may exhibit the lights prescribed in this
Rule for sailing vessels but if she does not she shall have
ready at hand an electric torch or lighted lantern showing a
white light which shall be exhibited in sufficient time to prevent
Sailing vessel than 7 meters in length Same for
Inland
INLAND
Lights and Shapes
RULE i A sailing vessel of less than 7 meters in length shall if
practicable exhibit the lights prescribed in paragraph a or b
of this Rule but if she does not she shall have ready at hand
an electric torch or lighted lantern showing a white light which
shall be exhibited in sufficient time to prevent collision
ii A vessel under oars may exhibit the lights prescribed in
this Rule for sailing vessels but if she does not she shall
have ready at hand an electric torch or lighted lantern showing
a white light which shall be exhibited in sufficient time to
prevent Vessel under oars Same for 75
INTERNATIONAL
Lights and Shapes
RULE e A vessel proceeding under sail when also being propelled by
machinery shall exhibit forward where it can best be seen a apex Vessel proceeding under sail when also being propelled by machin ery
Same for Inland except that a vessel of less than 12 meters in length is not
required to exhibit the 76
INLAND
Lights and Shapes
RULE e A vessel proceeding under sail when also being propelled by
machinery shall exhibit forward where it can best be seen a apex downward A vessel of less than 12 meters in length is
not required to exhibit this shape but may do so
INTERNATIONAL
Lights and Shapes
RULE 26
Fishing Vessels
a A vessel engaged in fishing whether underway or at anchor
shall exhibit only the lights and shapes prescribed in this Rule
b A vessel when engaged in trawling by which is meant the
dragging through the water of a dredge net or other apparatus used
as a fishing appliance shall exhibit
i two allround lights in a vertical line the upper being green
and the lower white or a shape consisting of two cones with
their apexes together in a vertical line one above the other
ii a masthead light abaft of and higher than the allround
green light a vessel of less than 50 meters in length shall not
be obliged to exhibit such a light but may do so
iii when making way through the water in addition to the lights
prescribed in this paragraph sidelights and a Vessel engaged in trawlingnot making way Same for Inland
INLAND
Lights and Shapes
RULE 26
Fishing Vessels
a A vessel engaged in fishing whether underway or at anchor
shall exhibit only the lights and shapes prescribed in this Rule
b A vessel when engaged in trawling by which is meant the
dragging through the water of a dredge net or other apparatus used
as a fishing appliance shall exhibit
i two allround lights in a vertical line the upper being green
and the lower white or a shape consisting of two cones with
their apexes together in a vertical line one above the other a
vessel of less than 20 meters in length may instead of this
shape exhibit a basket
ii a masthead light abaft of and higher than the allround
green light a vessel of less than 50 meters in length shall not
be obliged to exhibit such a light but may do so and
iii when making way through the water in addition to the lights
prescribed in this paragraph sidelights and a Vessel engaged in trawlingnot making way vessel less than 50
meters in length Same for 79
INTERNATIONAL
Lights and Shapes
RULE engaged in way vessel less than 50
meters in length Same for Inland
INLAND
Lights and Shapes
RULE engaged in way Same for 81
INTERNATIONAL
Lights and Shapes
RULE A vessel engaged in fishing other than trawling shall exhibit
i two allround lights in a vertical line the upper being red
and the lower white or a shape consisting of two cones
with apexes together in a vertical line one above the
other
ii when there is outlying gear extending more than 150
meters horizontally from the vessel an allround white light or
a cone apex upward in the direction of the gear and
iii when making way through the water in addition to the
lights prescribed in this paragraph sidelights and a Vessel engaged in fishing other than trawlingnot making way
Same for 82
INLAND
Lights and Shapes
RULE A vessel engaged in fishing other than trawling shall exhibit
i two allround lights in a vertical line the upper being red
and the lower white or a shape consisting of two cones with
apexes together in a vertical line one above the other a
vessel of less than 20 meters in length may instead of this
shape exhibit a basket
ii when there is outlying gear extending more than 150
meters horizontally from the vessel an allround white light or
a cone apex upward in the direction of the gear and
iii when making way through the water in addition to the
lights prescribed in this paragraph sidelights and a Vessel engaged in fishing other than trawlingnot making way
Same for 83
INTERNATIONAL
Lights and Shapes
RULE d The additional signals described in Annex II to apply to a vessel engaged in fishing in close proximity to
other vessels engaged in fishing
e A vessel when not engaged in fishing shall not exhibit the lights
or shapes prescribed in this Rule but only those prescribed for a
vessel of her length
INLAND
Lights and Shapes
RULE d A vessel engaged in fishing in close proximity to other in fishing may exhibit the additional signals described in
Annex II to these Rules
e A vessel when not engaged in fishing shall not exhibit the
lights or shapes prescribed in this Rule but only those prescribed for
a vessel of her length
INTERNATIONAL
Lights and Shapes
RULE 27
Vessels Not Under Command or Restricted in Their Ability to
Maneuver
a A vessel not under command shall exhibit
i two allround red lights in a vertical line where they can best
be seen
ii two balls or similar shapes in a vertical line where they can
best be seen
iii when making way through the water in addition to the lights
prescribed in this paragraph sidelights and a Vessel not under commandnot making way Same for Inland
INLAND
Lights and Shapes
RULE 27
Vessels Not Under Command or Restricted in Their Ability to
Maneuver
a A vessel not under command shall exhibit
i two allround red lights in a vertical line where they can best
be seen
ii two balls or similar shapes in a vertical line where they can
best be seen and
iii when making way through the water in addition to the lights
prescribed in this paragraph sidelights and a Vessel not under way Same for 87
INTERNATIONAL
Lights and Shapes
RULE b A vessel restricted in her ability to maneuver except a in mineclearance operations shall exhibit
i three allround lights in a vertical line where they can best be
seen The highest and lowest of these lights shall be red and
the middle light shall be white
ii three shapes in a vertical line where they can best be seen
The highest and lowest of these shapes shall be balls and the
middle one a diamond
iii when making way through the water a masthead light or
lights sidelights and a sternlight in addition to the lights pre
scribed in subparagraph i
iv when at anchor in addition to the lights or shapes
prescribed in subparagraphs i and ii the light lights or
shape prescribed in Rule 30
Vessel restricted in her ability to way vessel
less than 50 meters in length Same for Inland
INLAND
Lights and Shapes
RULE b A vessel restricted in her ability to maneuver except a in mineclearance operations shall exhibit
i three allround lights in a vertical line where they can best be
seen The highest and lowest of these lights shall be red and
the middle light shall be white
ii three shapes in a vertical line where they can best be seen
The highest and lowest of these shapes shall be balls and the
middle one a diamond
iii when making way through the water masthead lights
sidelights and a sternlight in addition to the lights prescribed in
subparagraph bi and
iv when at anchor in addition to the lights or shapes
prescribed in subparagraphs bi and ii the light lights or
shapes prescribed in Rule 30
Vessel restricted in her ability to maneuverat anchor vessel less
than 50 meters in length Same for 89
INTERNATIONAL
Lights and Shapes
RULE c A powerdriven vessel engaged in a towing operation such as
severely restricts the towing vessel and her tow in their ability to
deviate from their course shall in addition to ht e lights or in Rule 24a exhibit the lights or shapes prescribed bi and ii of this Rule
INLAND
Lights and Shapes
RULE c A vessel engaged in a towing operation which severely restricts
the towing vessel and her tow in their ability to deviate from their
course shall in addition to the lights or shapes prescribed bi and ii of this Rule exhibit the lights or in Rule 24
Vessel engaged in towing operation which severely restricts towing
vessel and her tow in their ability to deviate from their of
tow does not exceed 200 meters towing vessel less than 50 meters in
length Same for 91
INTERNATIONAL
Lights and Shapes
RULE d A vessel engaged in dredging or underwater operations in her ability to maneuver shall exhibit the lights and
shapes prescribed in subparagraphs bi ii and iii of this Rule
and shall in addition when an obstruction exists exhibit
i two allround red lights or two balls in a vertical line to
indicate the side on which the obstruction exists
ii two allround green lights or two diamonds in a vertical line
to indicate the side on which another vessel may pass
iii when at anchor the lights or shapes prescribed in this
paragraph instead of the lights or shape prescribed in Rule 30
Vessel engaged in dredging or underwater operations when
restricted in ability to way with an obstruction on the
starboard side Same for Inland
INLAND
Lights and Shapes
RULE d A vessel engaged in dredging or underwater operations in her ability to maneuver shall exhibit the lights and
shapes prescribed in subparagraphs bi ii and iii of this Rule
and shall in addition when an obstruction exists exhibit
i two allround red lights or two balls in a vertical line to
indicate the side on which the obstruction exists
ii two allround green lights or two diamonds in a vertical line
to indicate the side on which another vessel may pass and
iii when at anchor the lights or shape prescribed by this
para graph instead of the lights or shapes prescribed in Rule
30 for anchored vessels
Vessel engaged in dredging or underwater operations when restricted in
ability to maneuvernot making way with an obstruction on the starboard
side Same for 93
INTERNATIONAL
Lights and Shapes
RULE e Whenever the size of a vessel engaged in diving it impracticable to exhibit all lights and shapes prescribed in
paragraph d of this Rule the following shall be exhibited
i three allround lights in a vertical line where they can best be
seen The highest and lowest of these lights shall be red and
the middle light shall be white
ii a rigid replica of the International Code flag A not less
than 1 meter in height Measures shall be taken to ensure its all
round Small vessel engaged in diving operations Same for Inland
INLAND
Lights and Shapes
RULE e Whenever the size of a vessel engaged in diving it impracticable to exhibit all lights and shapes prescribed in
paragraph d of this Rule the following shall instead be exhibited
i Three allround lights in a vertical line where they can best
be seen The highest and lowest of these lights shall be red and
the middle light shall be white
ii A rigid replica of the international Code flag A not less
than 1 meter in height Measures shall be taken to insure its
allround Small vessel engaged in diving operations Same for 95
INTERNATIONAL
Lights and Shapes
RULE f A vessel engaged in mineclearance operations shall in addition
to the lights prescribed for a powerdriven vessel in Rule 23 or to the
lights or shape prescribed for a vessel at anchor in Rule 30 exhibit three allround green lights or three balls One of
these lights or shapes shall be exhibited near the foremast head and
one at each end of the fore yard These lights or shapes indicate
that it is dangerous for another vessel to approach within 1000
meters of the mineclearance vessel
Vessel engaged in mineclearance less than 50
meters in length Same for Inland
INLAND
Lights and Shapes
RULE f A vessel engaged in mineclearance operations shall in addition
to the lights prescribed for a powerdriven vessel in Rule 23 or to the
lights or shape prescribed for a vessel at anchor in Rule 30 exhibit three allround green lights or three balls One of
these lights or shapes shall be exhibited near the foremast head and
one at each end of the fore yard These lights or shapes indicate
that it is dangerous for another vessel to approach within 1000
meters of the mineclearance vessel
Vessel engaged in mineclearance operations
Same for 97
INTERNATIONAL
Lights and Shapes
RULE g Vessels of less than 12 meters in length except those engaged
in diving operations shall not be required to exhibit the lights and
shapes prescribed in this Rule
h The signals prescribed in this Rule are not signals of vessels in
distress and requiring assistance Such signals are contained in
Annex IV to these 98
INLAND
Lights and Shapes
RULE g A vessel of less than 12 meters in length except when
engaged in diving operations is not required to exhibit the lights or
shapes prescribed in this Rule
h The signals prescribed in this Rule are not signals of vessels in
distress and requiring assistance Such signals are contained in
Annex IV to these Rules
INTERNATIONAL
Lights and Shapes
RULE 28
Vessels Constrained by their Draft
A vessel constrained by her draft may in addition to the for powerdriven vessels in Rule 23 exhibit where they
can best be seen three allround red lights in a vertical line or Vessel constrained by her draft
INLAND
Lights and Shapes
RULE 28
INTERNATIONAL
Lights and Shapes
RULE 29
Pilot Vessels
a A vessel engaged on postage duty shall exhibit
i at or near the masthead two allround lights in a vertical
line the upper being white and the lower red
ii when underway in addition sidelights and a sternlight
iii when at anchor in addition to the lights prescribed in
subparagraph i the light lights or shape prescribed in Rule
30 for vessels at anchor
b A pilot vessel when not engaged on pilotage duty shall exhibit
the lights or shapes prescribed for a similar vessel of her length
Vessel engaged on pilotage Same for Inland
INLAND
Lights and Shapes
RULE 29
Pilot Vessels
a A vessel engaged on postage duty shall exhibit
i at or near the masthead two allround lights in a vertical
line the upper being white and the lower red
ii when underway in addition sidelights and a sternlight and
iii when at anchor in addition to the lights prescribed in
subparagraph i the anchor light lights or shape prescribed in
Rule 30 for anchored vessels
b A pilot vessel when not engaged on postage duty shall exhibit
the lights or shapes prescribed for a vessel of her length
Vessel engaged on pilotage dutyat anchor vessel of less than
50 meters in length Same for 103
INTERNATIONAL
Lights and Shapes
RULE 30
Anchored Vessels and Vessels Aground
a A vessel at anchor shall exhibit where it can best be seen
i in the fore part an allround white light or one ball
ii ii at or near the stern and at a lower level than the light
prescribed in subparagraph i an allround white light
b A vessel of less than 50 meters in length may exhibit an all
round white light where it can best be seen instead of the in paragraph a of this Rule
c A vessel at anchor may and a vessel of 100 meters and more
in length shall also use the available working or equivalent lights to
illuminate her decks
Vessel at anchorless than 50 meters in length Same for Inland
INLAND
Lights and Shapes
RULE 30
Anchored Vessels and Vessels Aground
a A vessel at anchor shall exhibit where it can best be seen
i in the fore part an allround white light or one ball and
ii at or near the stern and at a lower level than the light
prescribed in subparagraph i an allround white light
b A vessel of less than 50 meters in length may exhibit an all
round white light where it can best be seen instead of the in paragraph a of this Rule
c A vessel at anchor may and a vessel of 100 meters or more in
length shall also use the available working or equivalent lights to
illuminate her decks
Vessel at anchor with deck illumination Same for 105
INTERNATIONAL
Lights and Shapes
RULE d A vessel aground shall exhibit the lights prescribed in paragraph
a or b of this Rule and in addition where they can best be seen
i two allround red lights in a vertical line
ii three balls in a vertical line
Vessel aground Same for Inland
INLAND
Lights and Shapes
RULE d A vessel aground shall exhibit the lights prescribed in paragraph
a or b of this Rule and in addition if practicable where they can
best be seen
i two allround red lights in a vertical line and
ii three balls in a vertical line
Vessel agroundless than 50 meters in length Same for
INTERNATIONAL
Lights and Shapes
RULE e A vessel of less than 7 meters in length when at anchor not in
or near a narrow channel fairway or anchorage or where other
vessels normally navigate shall not be required to exhibit the lights
or shape prescribed in paragraphs a and b of this Rule
f A vessel of less than 12 meters in length when aground shall
not be required to exhibit the lights or shapes prescribed di and ii of this Rule
INLAND
Lights and Shapes
RULE e A vessel of less than 7 meters in length when at anchor not in
or near a narrow channel fairway anchorage or where other navigate shall not be required to exhibit the lights or in paragraphs a and b of this Rule
f A vessel of less than 12 meters in length when aground shall not
be required to exhibit the lights or shapes prescribed di and ii of this Rule
g A vessel of less than 20 meters in length when at anchor in a
special anchorage area designated by the Secretary shall not be
required to exhibit the anchor lights and shapes required by this Rule
INTERNATIONAL
Lights and Shapes
RULE 31
Sea planes
Where it is impracticable for a seaplane to exhibit lights and
shapes of the or in the positions prescribed in the
Rules of this Part she shall exhibit lights and shapes as in and position as is 110
INLAND
Lights and Shapes
RULE 31
Sea planes
Where it is impracticable for a seaplane to exhibit lights and
shapes of the or in the positions prescribed in the
Rules of this Part she shall exhibit lights and shapes as in and position as is 111
INTERNATIONAL
Sound and Light Signals
PART DSOUND AND LIGHT SIGNALS
RULE 32
Definitions
a The word whistle means any sound signaling of producing the prescribed blasts and which complies with
the in Annex III to these Regulations
b The term short blast means a blast of about one c The term prolonged blast means a blast of from four to six
seconds duration
RULE 33
Equipment for Sound Signals
a A vessel of 12 meters or more in length shall be provided with
a whistle and a bell and a vessel of 100 meters or more in length
shall in addition be provided with a gong the tone and sound of
which cannot be confused with that of the bell The whistle bell
and gong shall comply with the in Annex III to these
Regulations The belt or gong or both may be replaced by other
equipment having the same respective sound provided that manual sounding of the prescribed signals shall
always be possible
b A vessel of less than 12 meters in length shall not be obliged
carry the sound signaling appliances prescribed in paragraph a
of this Rule but if she does not she shall be provided with some
other means of making an efficient sound signal
INLAND
Sound and Light Signals
PART DSOUND AND LIGHT SIGNALS
RULE 32
Definitions
a The word whistle means any sound signaling of producing the prescribed blasts and which complies in Annex III to these Rules
b The term short blast means a blast of about 1 c The term prolonged blast means a blast of from 4 to 6
seconds duration
RULE 33
Equipment for Sound Signals
a A vessel of 12 meters or more in length shall be provided with a
whistle and a bell and a vessel of 100 meters or more in length shall
in addition be provided with a gong the tone and sound of which
cannot be confused with that of the bell The whistle bell and gong
shall comply with the in Annex III to these Rules The
bell or gong or both may be replaced by other equipment having the
same respective sound provided that of the prescribed signals shall always be possible
b A vessel of less than 12 meters in length shall not be obliged to
carry the sound signaling appliances prescribed in paragraph a of
this Rule but if she does not she shall be provided with some other
means of making an efficient sound signal
INTERNATIONAL
Sound and Light Signals
RULE 34
Maneuvering and Warning Signals
a When vessels are in sight of one another a underway when maneuvering as authorized or required by
these Rules shall indicate that maneuver by the following signals on
her short blast to mean I am altering my course to short blasts to mean I am altering my course to short blasts to mean I am operating astern b
Any vessel may supplement the whistle signals prescribed in
paragraph a of this Rule by light signals repeated as the maneuver is being carried out
i these light signals shall have the following one flash to mean I am altering my course to starboard
two flashes to mean I am altering my course to port
three flashes to mean I am operating astern propulsion
ii the duration of each flash shall be about one second the
interval between flashes shall be about one second and the
interval between successive signals shall be not less than ten
seconds
iii the light used for this signal shall if fitted be an allround
white light visible at a minimum range of 5 miles and shall
comply with the provisions of Annex I to these 114
INLAND
Sound and Light Signals
RULE 34
Maneuvering and Warning Signals
a When powerdriven vessels are in sight of one another and
meeting or crossing at a distance within half a mile of each other
each vessel underway when maneuvering as authorized or required
by these Rules
i shall indicate that maneuver by the following signals on her
whistle one shod blast to mean I intend to leave you on my
port side two shod blasts to mean I intend to leave you on
my starboard side and three short blasts to mean I am
operating astern propulsion
ii upon hearing the one or two blast signal of the other shall if
in agreement sound the same whistle signal and take the steps
necessary to effect a safe passing If however from any
cause the vessel doubts the safety of the proposed maneuver
she shall sound the danger signal specified in paragraph d of
this Rule and each vessel shall take appropriate action until a safe passing agreement is made
b A vessel may supplement the whistle signals prescribed in
paragraph a of this Rule by light signals
i These signals shall have the following significance one
flash to mean I intend to leave you on my pod side two
flashes to mean I intend to leave you on my starboard side
three flashes to mean I am operating astern propulsion
ii The duration of each flash shall be about 1 second and
iii The light used for this signal shall if fitted be one allround
white or yellow light visible at a minimum range of 2 miles
synchronized with the whistle and shall comply with the
provisions of Annex I to these Rules
INTERNATIONAL
Sound and Light Signals
RULE c When in sight of one another in a narrow channel or fairway
i a vessel intending to overtake another shall in compliance
with Rule 9ei indicate her intention by the following signals
on her whistle
two prolonged blasts followed by one short blast to mean I
intend to overtake you on your starboard side
two prolonged blasts followed by two short blasts to mean
I intend to overtake you on your port side
iithe vessel about to be overtaken when acting in accordance
with Rule 9ei shall indicate her agreement by the following
signal on her whistle
one prolonged one short one prolonged and one short
blast in that order
d When vessels in sight of one another are approaching each
other and from any cause either vessel fails to understand the inten
tions or actions of the other or is in doubt whether sufficient action is
being taken by the other to avoid collision the vessel in doubt indicate such doubt by giving at Feast five short and
rapid blasts on the whistle Such signal may be supplemented by a
light signal of at least five short and rapid flashes
e A vessel nearing a bend or an area of a channel or fairway
where other vessels may be obscured by an intervening sound one prolonged blast Such signal shall be answered with
a prolonged blast by any approaching vessel that may be around the bend or behind the intervening obstruction
f If whistles are fitted on a vessel at a distance apart of more than
100 meters one whistle only shall be used for giving warning signals
INLAND
Sound and Light Signals
RULE c When in sight of one another
i a powerdriven vessel intending to overtake another power
driven vessel shall indicate her intention by the following signals
on her whistle one short blast to mean I intend to overtake you
on your starboard side two short blasts to mean I intend to
overtake you on your port side and
ii the powerdriven vessel about to be overtaken shall if in
agreement sound a similar sound signal If in doubt she shall
sound the danger signal prescribed in paragraph d
d When vessels in sight of one another are approaching each
other and from any cause either vessel fails to understand the inten
tions or actions of the other or is in doubt whether sufficient action is
being taken by the other to avoid collision the vessel in doubt indicate such doubt by giving at least five short and
rapid blasts on the whistle This signal may be supplemented by a
light signal of at least five short and rapid flashes
e A vessel nearing a bend or an area of a channel or fairway
where other vessels may be obscured by an intervening sound one prolonged blast This signal shall be answered with
a prolonged blast by any approaching vessel that may be around the bend or behind the intervening obstruction
f If whistles are fitted on a vessel at a distance apart of more than
100 meters one whistle only shall be used for giving warning signals
g When a powerdriven vessel is leaving a dock or berth she
shall sound one prolonged blast
h A vessel that reaches agreement with another vessel in a
meeting crossing or overtaking situation by using the prescribed by the Act 85 Stat
165 33 USC 1207 is not obliged to sound the whistle by this Rule but may do so If agreement is not reached
then whistle signals shall be exchanged in a timely manner and 117
INTERNATIONAL
Sound and Light Signals
RULE 35
Sound Signals in Restricted Visibility
In or near an area of restricted visibility whether by day or night
the signals prescribed in this Rule shall be used as follows
a A powerdriven vessel making way through the water shall
sound at intervals of not more than 2 minutes one prolonged blast
b A powerdriven vessel underway but stopped and making no
way through the water shall sound at intervals of not more than 2
minutes two prolonged blasts in succession with an interval of about
2 seconds between them
c A vessel not under command a vessel restricted in her ability to
maneuver a vessel constrained by her draft a sailing vessel a
vessel engaged in fishing and a vessel engaged in towing or vessel shall instead of the signals prescribed in or b of this Rule sound at intervals
of not more than 2 minutes
three blasts in succession namely one prolonged followed by two
short blasts
d A vessel engaged in fishing when at anchor and a in her ability to maneuver when carrying out her work at
anchor shall instead of the signals prescribed in paragraph g of this
Rule sound the signal prescribed in paragraph c of this Rule
e A vessel towed or if more than one vessel is towed the last
vessel of the tow if manned shall at intervals of not more than 2
minutes sound four blasts in succession namely one by three shod blasts When practicable this signal shall be
made immediately after the signal made by the towing vessel
f When a pushing vessel and a vessel being pushed ahead are
rigidly connected in a composite unit they shall be regarded as vessel and shall give the signals prescribed in
paragraphs a or b of this Rule
INLAND
Sound and Light Signals
RULE 35
Sound Signals in Restricted Visibility
In or near an area of restricted visibility whether by day or night
the signals prescribed in this Rule shall be used as follows
a A powerdriven vessel making way through the water shall
sound at intervals of not more than 2 minutes one prolonged blast
b A powerdriven vessel underway but stopped and making no
way through the water shall sound at intervals of not more than 2
minutes two prolonged blasts in succession with an interval of about
2 seconds between them
c A vessel not under command a vessel restricted in her ability to
maneuver whether underway or at anchor a sailing vessel a in fishing whether underway or at anchor and a in towing or pushing another vessel shall
instead of the sig
nals prescribed in paragraphs a or b of this Rule sound at
intervals of not more than 2 minutes three blasts in one prolonged followed by two short blasts
d A vessel towed or if more than one vessel is towed the last
vessel of the tow if manned shall at intervals of not more than 2
minutes sound four blasts in succession namely one by three short blasts When practicable this signal shall be
made immediately after the signal made by the towing vessel
e When a pushing vessel and a vessel being pushed ahead are
rigidly connected in a composite unit they shall be regarded as vessel and shall give the signals prescribed in
paragraphs a or b of this Rule
INTERNATIONAL
Sound and Light Signals
RULE g A vessel at anchor shall at intervals of not more than one
minute ring the bell rapidly for about 5 seconds In a vessel of 100
meters or more in length the bell shall be sounded in the forepart of
the vessel and immediately after the ringing of the bell the gong shall
be sounded rapidly for about 5 seconds in the after part of the vessel
A vessel at anchor may in addition sound three blasts in one short one prolonged and one shod blast to give warn
ing of her position and of the possibility of collision to an h A vessel aground shall give the bell signal and if required the
gong signal prescribed in paragraph g of this Rule and shall in
addition give three separate and distinct strokes on the before and after the rapid ringing of the bell A may in addition sound an appropriate
whistle signal
i A vessel of less than 12 meters in length shall not be obliged to
give the signals but if she does not shall make
some other efficient sound signal at intervals of not more than 2
minutes
j A pilot vessel when engaged on postage duty may in addition to
the signals prescribed in paragraphs a b or g of this Rule sound
an identity signal consisting of four short blasts
INLAND
Sound and Light Signals
RULE f A vessel at anchor shall at intervals of not more than 1 minute
ring the bell rapidly for about 5 seconds In a vessel of 100 meters or
more in length the bell shall be sounded in the forepart of the vessel
and immediately after the ringing of the bell the gong shall be
sounded rapidly for about 5 seconds in the after part of the vessel A
vessel at anchor may in addition sound three blasts in one short one prolonged and one shod blast to give warning
of her position and of the possibility of collision to an g A vessel aground shall give the bell signal and if required the
gong signal prescribed in paragraph g of this Rule and shall in
addition give three separate and distinct strokes on the before and after the rapid ringing of the bell A may in addition sound an appropriate
whistle signal
h A vessel of less than 12 meters in length shall not be obliged to
give the signals but if she does not shall make
some other efficient sound signal at intervals of not more than 2
minutes
i A pilot vessel when engaged on postage duty may in addition
to the signals prescribed in paragraphs a b or g of this Rule
sound an identity signal consisting of four short blasts
j The following vessels shall not be required to sound signals as
prescribed in paragraph f of this Rule when anchored in a area designated by the Secretary
i a vessel of less than 20 meters in length and
ii a barge canal boat scow or other nondescript craft
INTERNATIONAL
Sound and Light Signals
RULE 36
Signals to Attract Attention
If necessary to attract the attention of another vessel any vessel
may make light or sound signals that cannot be mistaken for any
signal authorized elsewhere in these Rules or may direct the beam
of her search light in the direction of the danger in such a way as
not to embarrass any vessel Any light to attract the attention of
another vessel shall be such that it cannot be mistaken for any aid For the purpose of this rule the use of high or revolving lights such as strobe
lights shall 122
INLAND
Sound and Light Signals
RULE 36
Signals to Attract Attention
If necessary to attract the attention of another vessel any vessel
may make light or sound signals that cannot be mistaken for any
signal authorized elsewhere in these Rules or may direct the beam
of her search light in the direction of the danger in such a way as
not to embarrass any vessel
INTERNATIONAL
Sound and Light Signals
RULE 37
Distress Signals
When a vessel is in distress and requires assistance she shall use
or exhibit the signals in Annex IV to these DISTRESS SIGNALS
72 COLREGS
INLAND
Sound and Light Signals
RULE 36
Signals to Attract Attention
When a vessel is in distress and requires assistance she shall use
or exhibit the signals in Annex IV to these Rules
The distress signals for inland waters and the same as those displayed
on the facing page for international waters with the following A high intensity white light flashing at regular intervals
from 50 to 70 times per minute
INTERNATIONAL
Exemptions
PART E EXEMPTIONS
RULE 38
vessel or class of vessels provided that she complies with of the International Regulations for Preventing collisions
at Sea 1960 the keel of which is laid or which is at a of construction before the entry into force of these be exempted from compliance therewith as
follows
a The installation of lights with ranges prescribed in Rule 22 until
four years after the date of entry into force of these The installation of lights with color as prescribed in
Section 7 of Annex I of these Regulations until four years after
the date of entry into force of these repositioning of lights as a result of conversion from Imperial
to metric units and rounding off measurement figures 126
INLAND
Exemptions
PART RULE 38
Exemptions
Any vessel or class of vessels the keel of which is laid or which is
at a corresponding stage of construction before the date of
enactment of this Act provided that she complies with of
a The Act of June 7 1897 30 Stat 96 as amended 33 for vessels navigating the waters subject to that statute
b Section 4233 of the Revised Statutes 33 USC 301356 for
vessels navigating the waters subject to that statute
c The Act of February 8 1895 28 Stat 645 as amended 33
USC 241295 for vessels navigating the waters subject to that
statute or
d Sections 3 4 and 5 of the Act of April 25 1940 54 Stat 163
as amended 46 USC 526 b c and d for motorboats waters subject to that statute shall be exempted with the technical Annexes to these Rules as follows
i the installation of lights with ranges prescribed in Rule 22
until 4 years after the effective date of these Rules except that
vessels of less than 20 meters in length are permanently
exempt
ii the installation of lights with color as
prescribed in Annex I to these Rules until 4 years after the
effective date of these Rules except that vessels of less than
20 meters in length are permanently exempt
iii the repositioning of lights as a result of conversion to metric
units and rounding off measurement figures are permanently
exempt and
INTERNATIONAL
Exemptions
RULE d i The repositioning of masthead lights on vessels of less than
150 meters in length resulting from the prescriptions of Section 3a
of Annex I to these Regulations permanent exemption
ii The repositioning of masthead lights on vessels of 150
meters or more in length resulting from the prescriptions of
Section 3a of Annex I to these Regulations until 9 years after
the date of entry into force of these Regulations
e The repositioning of masthead lights resulting from of Section 2b of Annex I to these Regulations until 9
years after the date of entry into force of these Regulations f of sidelights resulting from the prescriptions of
Sections 29 and 3b of Annex I to these Regulations until 9 years
after the date of entry into force of these Regulations
g The requirements for sound signal appliances prescribed in
Annex III to these Regulations until 9 years after the date of entry
into force of these Regulations
h The repositioning of allround lights resulting from of Section 9b of Annex I to these 128
INLAND
Exemptions
RULE the horizontal repositioning of masthead lights prescribed
by Annex I to these Rules
1 on vessels of less than 150 meters in length permanent
exemption
2 on vessels of 150 meters or more in length until 9 years
after the effective date of these Rules
v the restructuring or repositioning of all lights to meet of Annex I to these Rules until 9 years after the
effective date of these Rules
vi powerdriven vessels of 12 meters or more but less than 20
meters in length are permanently exempt from the provisions of
Rule 23ai and 23 aiv provided that in place of these
lights the vessel exhibits a white light aft visible all round the
horizon and
vii the requirements for sound signal appliances prescribed in
Annex III to these Rules until 9 years after the effective date of
these Rules
INTERNATIONAL
ANNEX I
Positioning and Technical Details of Lights and Shapes
1 Definition
The term height above the hull means height above the upper
most continuous deck This height shall be measured from the posi
tion vertically beneath the location of the light
2 Vertical positioning and spacing of lights
a On a powerdriven vessel of 20 meters or more in length the
masthead lights shall be placed as follows
i the forward masthead light or if only one masthead light is
carried then that light at a height above the hull of not less than
6 meters and if the breadth of the vessel exceeds 6 meters
then at a height above the hull not less than such breadth so
however that the light need not be placed at a greater height
above the hull than 12 meters
ii when two masthead lights are carried the after one shall be
at least 45 meters vertically higher than the forward one
b The vertical separation of masthead lights of shall be such that in all normal conditions of trim the after
light will be seen over and separate from the forward light at a
distance of 1000 meters from the stem when viewed from sea level
c The masthead light of a powerdriven vessel of 12 meters
but less than 20 meters in length shall be placed at a height above
the gunwale of not less than 25 meters
INLAND
ANNEX I
Positioning and Technical Details of Lights and Shapes
8401 Definitions
a The term height above the hull means height above the
uppermost continuous deck This height shall be measured from the
position vertically beneath the location of the light
b The term practical cutoff means for vessels 20 meters or
more in length 125 percent of the minimum luminous 8415b corresponding to the greatest range of visibility for
which the requirements of Annex I are met
c The term Rule or Rules means the Inland contained in Sec 2 of the Inland Navigational Rules Act of
1980 Pub L 9659194 Stat 3415 33 USC 2001 December 24
1980 as amended
8403 Vertical positioning and spacing of lights
a On a powerdriven vessel of 20 meters or more in length the
masthead lights shall be placed as follows
1 The forward masthead light or if only one masthead light is
carried then that light at a height above the hull of not less than
5 meters and if the breadth of the vessel exceeds 5 meters
then at a height above the hull not less than such breadth so
however that the light need not be placed at a greater height
above the hull than 8 meters
2 When two masthead lights are carried the after one shall be
at least 2 meters vertically higher than the forward one b The
vertical separation of the masthead lights of powerdriven vessels
shall be such that in all normal conditions of trim the after light will
be seen over and separate from the forward light at a dis tance of
1000 meters from the stem when viewed from water level
c The masthead light of a powerdriven vessel of 12 meters
but less than 20 meters in length shall be placed at a height above
the gunwale of not less than 25 meters
INTERNATIONAL
ANNEX d A powerdriven vessel of less than 12 meters in length may
carry the uppermost light at a height of less than 25 meters above
the gunwale When however a masthead light is carried in addition
to sidelights and a sternlight or the allround light prescribed in rule
23ci is carried in addition to sidelights then such masthead light
or allround light shall be carried at least 1 meter higher than e One of the two or three masthead lights prescribed for vessel when engaged in
towing or pushing shall be placed in the same position as either the light or the after masthead light provided that if carried
on the aftermast the lowest after masthead light shall be at least
45 meters vertically higher than the forward masthead light
f i The masthead light or lights prescribed in Rule 23a shall
be so placed as to be above and clear of all other lights and
obstructions except as described in subparagraph ii
ii When it is impracticable to carry the allround lights pre
scribed by Rule 27bi or Rule 28 below the masthead lights
they may be carded above the after masthead lights or verti
cally in between the forward masthead lights and after mast
head lights provided that in the latter case the requirement of
Section 3c of this Annex shall be complied with
g The sidelights of a powerdriven vessel shall be placed at a
height above the hull not greater than three quarters of that of the
forward masthead light They shall not be so low as to be by deck lights
h The sidelights if in a combined lantern and carried on vessel of less than 20 meters in length shall be placed
not less than 1 meter below the masthead light
i When the Rules prescribe two or three lights to be carried in a
vertical line they shall be spaced as follows
i on a vessel of 20 meters in length or more such lights
shall be spaced not less than 2 meters apart and the lowest
of these lights shall except where a towing light is required
be placed at a height of not less than 4 meters above the
hull
ii on a vessel of less than 20 meters in length such lights
shall be spaced not less than 1 meter apart and the lowest
of these lights shall except where a towing light is required
be placed at a height of not less than 2 meters above the
gunwale
iii when three lights are carried they shall be equally spaced
INLAND
ANNEX I Continued
d The masthead light or the allround light described in Rule
23c of a powerdriven vessel of less than 12 meters in length shall
be carried at least one meter higher than the sidelights
e One of the two or three masthead lights prescribed for vessel when engaged in towing or pushing shall be placed in the same position as either the
light or the after masthead light provided that the lowest
after masthead light shall be at least 2 meters vertically higher than
the highest forward masthead light
f 1 The masthead light or lights prescribed in Rule 23a
shall be so placed as to be above and clear of all other lights
and obstructions except as described in paragraph f2 of this
section
2 When it is impracticable to carry the allround lights pre
scribed in Rule 27bi below the masthead lights they may be
carried above the after masthead lights or vertically in between
the forward masthead lights and after masthead lights
provided that in the latter case the requirement of 8405d
shall be complied with
g The sidelights of a powerdriven vessel shall be placed at
least one meter lower than the forward masthead light They shall
not be so low as to be interfered with by deck lights
h Reserved
i When the Rules prescribe two or three lights to be carried in a
vertical line they shall be spaced as follows
1 On a vessel of 20 meters in length or more such lights
shall be spaced not less than 1 meter apart and the lowest
of these lights shall except where a towing light is required
be placed at a height of not less than 4 meters above the
hull
2 On a vessel of less than 20 meters in length such lights
shall be spaced not less than 1 meter apart and the lowest
of these lights shall except where a towing light is required
be placed at a height of not less than 2 meters above the
gunwale
3 When three lights are carried they shall be equally spaced
INTERNATIONAL
ANNEX j The lower of the two allround lights prescribed for a vessel
when engaged in fishing shall be at a height above the sidelights not
less than twice the distance between the two vertical lights
k The forward anchor light prescribed in Rule 30ai when
two are carried shall not be less than 45 meters above the after
one On a vessel of 50 meters or more in length this forward anchor
light shall be placed at a height of not less than 6 meters above the
hull
3 Horizontal positioning and spacing of lights
a When two masthead lights are prescribed for a the horizontal distance between them shall not be less than
one half of the length of the vessel but need not be more than 100
meters The forward light shall be placed not more than one quarter
of the length of the vessel from the stem
b On a powerdriven vessel of 20 meters or more in length shall not be placed in front of the forward masthead lights
They shall be placed at or near the side of the vessel
c When the lights prescribed in Rule 27bi or Rule 28 are
placed vertically between the forward masthead lights and the lights these allround lights shall be placed at a horizon
tal distance of not less than 2 meters from the fore and aft centerline
of the vessel in the athwartship direction
d When only one masthead light is prescribed for a power
driven vessel this light shall be exhibited forward of that a vessel of less then 20 meters in length need not
exhibit this light forward of amidships but shall exhibit it as far
forward as is 134
INLAND
ANNEX I Continued
j The lower of the two allround lights prescribed for a vessel
when engaged in fishing shall be at a height above the sidelights not
less than twice the distance between the two vertical lights
k The forward anchor light prescribed in Rule 30ai when
two are carried shall not be less than 45 meters above the after
one On a vessel of 50 meters or more in length this forward anchor
light shall be placed at a height of not less than 6 meters above the
hull
8405 Horizontal positioning and spacing of lights
a Except as specified in paragraph b of this section when
two masthead lights are prescribed for a powerdriven vessel distance between them shall not be less than one quarter
of the length of the vessel but need not be more than 50 meters
The forward light shall be placed not more than one half of the
length of the vessel from the stem
b On powerdriven vessels 50 meters but less than 60 meters
in length operated on the Western Rivers and those in 8925 the horizontal distance between masthead lights
shall not be less than 10 meters
c On a powerdriven vessel of 20 meters or more in length shall not be placed in front of the forward masthead lights
They shall be placed at or near the side of the vessel
d When the lights prescribed in Rule 27bi are between the forward masthead lights and the lights these allround lights shall be placed at a
horizontal distance of not less than 2 meters from the fore and of the vessel in the athwartship 135
INTERNATIONAL
ANNEX I Continued
4 Details of location of lights for dredgers and vessels engaged in underwater opera tions
a The light indicating the direction of the outlying gear from a
vessel engaged in fishing as prescribed in Rule 26cii shall be
placed at a horizontal distance of not less than 2 meters and not
more than 6 meters away from the two allround red and white lights
This light shall be placed not higher than the allround white in Rule 26ci and not lower than the sidelights
b The lights and shapes on a vessel engaged in dredging or
underwater operations to indicate the obstructed side andor the side
on which it is safe to pass as prescribed in Rule 27di and ii
shall be placed at the maximum practical horizontal distance but in
no case less than 2 meters from the lights or shapes prescribed in
Rule 27bi and ii In no case shall the upper of these lights or
shapes be at a greater height than the lower of the three lights or
shapes prescribed in Rule 27bi and ii
INLAND
ANNEX I Continued
8407 Details of location of lights for
fishing vessels dredgers and vessels engaged In a The light indicating the direction of the outlying gear from a
vessel engaged in fishing as prescribed in Rule 26cii shall be
placed at a horizontal distance of not less than 2 meters and not
more than 6 meters away from the two allround red and white lights
This light shall be placed not higher than the allround white in Rule 26ci and not lower than the sidelights
b The lights and shapes on a vessel engaged in dredging or
underwater operations to indicate the obstructed side andor the side
on which it is safe to pass as prescribed in Rule 27di and ii
shall be placed at the maximum practical horizontal distance but in
no case less than 2 meters from the lights or shapes prescribed in
Rule 27bi and ii In no case shall the upper of these lights or
shapes be at a greater height than the lower of the three lights or
shapes prescribed in Rule 27bi and ii
INTERNATIONAL
Screens for sidelights
The sidelights of vessels of 20 meters or more in length shall be
fitted with inboard screens painted matt black and meeting of Section 9 of this Annex On vessels of less than 20
meters in length the sidelights if necessary to meet of Section 9 of this Annex shall be fitted with inboard
matt black screens With a combined lantern using a single and a very narrow division between the green and red
sections external screens need not be fitted
6 Shapes
a Shapes shall be black and of the following sizes
i a ball shall have a diameter of not less than 06 meter
ii a cone shall have a base diameter of not less than 06 meter
and a height equal to its diameter
iii a cylinder shall have a diameter of at least 06 meter and a
height of twice its diameter
iv a diamond shape shall consist of two cones as defined in ii
above having a common base
b The vertical distance between shapes shall be at least 15
meter
c In a vessel of less than 20 meters in length shapes of but commensurate with the size of the vessel may be
used and the distance apart may be reduced
INLAND
ANNEX I Continued
8409 Screens
a The sidelights of vessels of 20 meters or more in length shall
be fitted with mat black inboard screens and meet the 8417 On vessels of less than 20 meters in length if necessary to meet the requirements of
8417 shall be
fitted with mat black inboard screens With a combined a single vertical filament and a very narrow division between
the green and red sections external screens need not be fitted
b On powerdriven vessels less than 12 meters in length con
structed after July 31 1983 the masthead light or the all round in Rule 23c shall be screened to prevent direct of the vessel forward of the
operators position
8411 Shapes
a Shapes shall be black and of the following sizes
1 A ball shall have a diameter of not less than 06 meter
2 A cone shall have a base diameter of not less than 06
meter and a height equal to its diameter
3 A diamond shape shall consist of two cones as defined
in Paragraph a2 of this section having a common base
b The vertical distance between shapes shall be at least 15
meter
c In a vessel of less than 20 meters in length shapes of but commensurate with the size of the vessel may be
used and the distance apart may be reduced
INTERNATIONAL
ANNEX Color specification of lights
The chromaticity of all navigation lights shall conform to the
following standards which lie within the boundaries of the area of
the diagram specified for each color by the on Illumination CIE
The boundaries of the area for each color are given by
indicating the corner coordinates which are as follows
i White
x 0525 0525 0452 0310 0310 0443
y 0382 0440 04400348 0283 0382
ii Green
x 0028 0009 0300 0203
y 0385 0723 0511 0356
iii Red
x 0680 0660 0735 0721
y 0320 0320 0265 0259
iv Yellow
x 0612 0618 0575 0575
y 0382 0382 0425 0406
8 Intensity of lights
a The minimum luminous intensity of lights shall be calculated
by using the formula
1343 x 1 06xT x D2 x KD
where I is luminous intensity in candelas under service conditions
T is threshold factor 2 x 107 lux
D is range of visibility luminous range of the light in nautical
miles
K is atmospheric For prescribed lights the value
of K shall be 08 corresponding to a visibility of
approximately 13 nautical miles
INLAND
ANNEX I Continued
8413 Color specification of lights
a The chromaticity of all navigation lights shall conform to the
following standards which lie within the boundaries of the area of
the diagram specified for each color by the on Illumination CIE in the Colors of Light is incorporated by reference It is Publication CIE No 1975
and is available from the Illumination 345 East 47th Street New York NY 10017 It is for inspection at the Office of the Federal Register Room
8401 1100 L Street NW Washington DC 20408 by reference was approved by the Director of the
Federal Register
b The boundaries of the area for each color are given by
indicating the corner coordinates which are as follows
1 White
x 0525 0525 0452 0310 0310 0443
y 0382 0440 0440 0348 0283 0382
2 Green
x 0028 0009 0300 0203
y O385 O723 0511 0356
3 Red
x 0680 0660 0735 0721
y 0320 0320 0265 0259
4 Yellow
x 0612 0618 0575 0575
y 0382 0382 0425 0406
8415 Intensity of lights
a The minimum luminous intensity of lights shall be calculated
by using the formula
1343 x 106 x T x D2 x KD
where I is luminous intensity in candelas under service conditions T
is threshold factor 2 x 107 lux
D is range of visibility luminous range of the light in nautical
miles
K is atmospheric For prescribed lights the value
of K shall be 08 corresponding to a visibility of
approximately 13 nautical miles
INTERNATIONAL
ANNEX I Continued
b A selection of figures derived from the formula is given in the
following table
Range of visibility luminous Luminous intensity of light
range of light in nautical in candelas for K 08
miles I
1 09
2 43
3 12
4 27
5 52
6 94
Note The maximum luminous intensity of navigation lights should be
limited to avoid undue glare This shall not be achieved by a of the luminous intensity
9 Horizontal sectors
a i In the forward direction sidelights as fitted on the vessel shall show
the minimum required intensities The intensities shall decrease to
reach practical cutoff between 1 degree and 3 degrees outside the
prescribed sectors
ii For sternlights and masthead lights and at 225 degrees abaft
the beam for sidelights the minimum required intensities shall be
maintained over the arc of the horizon up to 5 degrees within the
limits of the sectors prescribed in Rule 21 From 5 degrees within
the prescribed sectors the intensity may decrease by 50 percent
up to the prescribed limits it shall decrease steadily to reach
practical cutoff at not more than 5 degrees outside the prescribed
sectors
b i Allround lights shall be so located as not to be obscured
by masts topmasts or structures within angular sectors of
more than 6 degrees except anchor lights prescribed in Rule
30 which need not be placed at an impracticable height
above the hull
ii If it is impracticable to comply with paragraph bi of this sec
tion by exhibiting only one allround light two allround lights shall
be used suitably positioned or screened so that they appear as
far as practicable as one light at a distance of one mile
INLAND
ANNEX I Continued
b A selection of figures derived from the formula is given in
Table 8415b
Table 8415b
Range of visibility luminous Minimum
range of light in nautical luminous intensity of light
miles in candelas for K 08
D I
1 09
2 43
3 12
4 27
5 52
6 94
8417 Horizontal sectors
a 1 In the forward direction sidelights as fitted on the vessel
shall show the minimum required intensities The intensities to reach practical cutoff between 1 and 3 degrees outside
the prescribed sectors
2 For sternlights and masthead lights and at 225 degrees
abaft the beam for sidelights the minimum required intensities shall
be maintained over the arc of the horizon up to 5 degrees within the
limits of the sectors prescribed in Rule 21 From 5 degrees within
the prescribed sectors the intensity may decrease by 50 percent up
to the prescribed limits it shall decrease steadily to reach at not more than 5 degrees outside the prescribed sectors
b Allround lights shall be so located as not to be obscured by
masts topmasts or structures within angular sectors of more than 6
degrees except anchor lights prescribed in Rule 30 which need not
be placed at an impracticable height above the hull and the all
round white light described in Rule 23d which may not be
obscured at all
INTERNATIONAL
ANNEX Vertical sectors
a The vertical sectors of electric lights as fitted with the
exception of lights on sailing vessels underway shall ensure that
i at least the required minimum intensity is maintained at all
angles from 5 degrees above to 5 degrees below the horizon tal
ii at least 60 percent of the required minimum intensity is
maintained from 75 degrees above to 75 degrees below the
horizontal
b In the case of sailing vessels underway the vertical sectors of
electric lights as fitted shall ensure that i at least the intensity is maintained at all angles from 5 degrees above
to 5 degrees below the horizon tal
ii at least 50 percent of the required minimum intensity is
maintained from 25 degrees above to 25 degrees below the
horizontal
c In the case of lights other than electric these be met as closely as Intensity of nonelectric lights
Nonelectric lights shall so far as practicable comply with the
minimum intensities as specified in the Table given in Section 8 of
this Annex
INLAND
ANNEX I Continued
8419 Vertical sectors
a The vertical sectors of electric lights as fitted with the
exception of lights on sailing vessels underway and on shall ensure that
1 At least the required minimum intensity is maintained at all
angles from 5 degrees above to 5 degrees below the horizon tal
2 At least 60 percent of the required minimum intensity is
maintained from 75 degrees above to 75 degrees below the
horizontal
b In the case of sailing vessels underway the vertical sectors of
electric lights as fitted shall ensure that
1 At least the required minimum intensity is maintained at all
angles from 5 degrees above to 5 degrees below the horizon tal
2 At least 50 percent of the required minimum intensity is
maintained from 25 degrees above to 25 degrees below the
horizontal
c In the case of unmanned barges the minimum of electric lights as fitted shall be maintained on d In the case of lights other than electric
lights shall be met as closely as possible
8421 Intensity of nonelectric lights
Nonelectric lights shall so far as practicable comply with the
minimum intensities as specified in the Table given in 8415
INTERNATIONAL
ANNEX I Maneuvering light
the provisions of paragraph 2f of this Annex
the maneuvering light described in Rule 34b shall be placed in the
same fore and aft vertical plane as the masthead light or lights and
where practicable at a minimum height of 2 meters vertically above
the forward masthead light provided that it shall be carried not less
than 2 meters vertically above or below the after masthead light On
a vessel where only one masthead light is carried the if fitted shall be carried where it can best be seen not less
than
2 meters vertically apart from the masthead light
13 High Speed Craft
The masthead light of high speed craft with a length to breadth
ratio of less than 30 may be placed at a height related to the
breadth of the craft lower than that prescribed in paragraph 2ai of
this annex provided that the base angle of the isosceles by the sidelights and masthead light when seen in is not less than 27
14 Approval
The construction of lights and shapes and the installation of
lights on board the vessel shall be to the satisfaction of authority of the State whose flag the vessel is entitled to
INLAND
ANNEX I Continued
8423 Maneuvering light
the provisions of 8403f the maneuvering in Rule 34b shall be placed approximately in the same fore and
aft vertical plane as the masthead light or lights and where practicable at
a minimum height of onehalf meter vertically above the forward provided that it shall be carried not less than onehalf meter or below the after
masthead light On a vessel where only one
masthead light is carried the maneuvering light if fitted shall be carried
where it can best be seen not less than onehalf meter vertically apart from
the masthead light
8425 Approval 147
INTERNATIONAL
ANNEX II
Additional Signals for Fishing Vessels Fishing in Close
Proximity
1 General
The lights mentioned herein shall if exhibited in pursuance of
Rule 26d be placed where they can best be seen They shall be at
least 09 meter apart but at a lower level than lights prescribed in
Rule 26bi and ci The lights shall be visible all around the
horizon at a distance of at least I mile but at a lesser distance than
the lights prescribed by these Rules for fishing vessels
2 Signals for trawlers
a Vessels of 20 meters or more in length when engaged in
trawling whether using demersal or pelagic gear may exhibit
i when shooting their netstwo white lights in a vertical line ii
when hauling their nets one white light over one red light in a
vertical line
iii when the net has come fast upon an obstruction two red
lights in a vertical line
b Each vessel of 20 meters or more in length engaged in pair
trawling may exhibit
i by night a searchlight directed forward and in the direction of
the other vessel of the pair
ii when shooting or hauling their nets or when their nets have come
fast upon an obstruction the lights prescribed in 2a above
3 Signals for purse seiners
Vessels engaged in fishing with purse seine gear may exhibit
two yellow lights in a vertical line These lights shall flash second and with equal light and occultation duration These
lights may be exhibited only when the vessel is hampered by its
fishing gear
INLAND
ANNEX II
Additional Signals for Fishing Vessels Fishing in Close
General
The lights mentioned herein shall if exhibited in pursuance of
Rule 26d be placed where they can best be seen They shall be at
least 09 meter apart but at a lower level than lights prescribed in
Rule 26bi and ci contained in the Inland Navigational Rules
Act of 1980 The lights shall be visible all around the horizon at a
distance of at least 1 mile but at a lesser distance than the by these Rules for fishing vessels
853 Signals for trawlers
a Vessels when engaged in trawling whether using demersal
or pelagic gear may exhibit
1 When shooting their nets two white lights in a vertical line
2 When hauling their nets one white light over one red light in
a vertical line
3 When the net has come fast upon an obstruction two red
lights in a vertical line b Each vessel engaged in pair trawling 1 By night a searchlight directed forward and in the direction
of the other vessel of the pair 2 When shooting or hauling their
nets or when their nets have come fast upon an obstruction the
lights prescribed in paragraph a above
855 Signals for purse seiners
Vessels engaged in fishing with purse seine gear may exhibit
two yellow lights in a vertical line These lights shall flash second and with equal light and occultation duration These
lights may be exhibited only when the vessel is hampered by its fish
ing gear
INTERNATIONAL
ANNEX III
Technical Details of Sound Signal Whistles
a Frequencies and range of audibility The of the signal shall lie within the range 70700 Hz
The range of audibility of the signal from a whistle shall be
determined by those frequencies which may include andor one or more higher frequencies which lie within
the range 180700 Hz 1 percent and which provide the levels specified in paragraph 1 c below
b Limits of fundamental frequencies To ensure a wide
variety of whistle the fundamental frequency of a
whistle shall be between the following limits
i 70200 Hz for a vessel 200 meters or more in length
ii 130350 Hz for a vessel 75 meters but less than 200 meters
in length
iii 250700 Hz for a vessel less than 75 meters in length
INLAND
ANNEX III
Technical Details of Sound Signal Appliances
SUBPART 8601 Frequencies and range of audibility
The fundamental frequency of the signal shall lie within the
range 70525 Hz The range of audibility of the signal from a whistle
shall be determined by those frequencies which may include andor one or more higher frequencies which lie within
the frequency ranges and provide the sound pressure in 8605
8603 Limits of fundamental frequencies
To ensure a wide variety of whistle frequency of a whistle shall be between the a 70200 Hz for a vessel 200 meters or more in length
b 130350 Hz for a vessel 75 meters but less than 200
meters in length
c 250525 Hz for a vessel less than 75 meters in length
INTERNATIONAL
ANNEX III Continued
c Sound signal intensity and range of audibility A whistle
fitted in a vessel shall provide in the direction of maximum
intensity of the whistle and at a distance of 1 meter from it a
sound pressure level in at least one 13octave band within
the range of frequencies 180700 Hz 1 percent of not
less than the appropriate figure given in the table below
I3octave band
level at 1
meter in dB of vessel referred to range in
in meters 2x105 Nm 2 nautical miles
200 or more 2
75 but less than 138 15
20 but less than 75 130 1
Less than 20 05
The range of audibility in the table above is for information and
is approximately the range at which a whistle may be heard on its
forward axis with 90 percent probability in conditions of still air on
board a vessel having average background noise level at the
listening posts taken to be 68 dB in the octave band centered on
250 Hz and 63 dB in the octave band centered on 500 Hz
INLAND
ANNEX 8605 Sound signal intensity and range of audibility
A whistle on a vessel shall provide in the direction of the
forward axis of the whistle and at a distance of 1 meter from it a
sound pressure level in at least one3octave band of not less than
the appropriate figure given in Table 8605 within the ranges 1 percent
a 1301200 Hz for a vessel 75 meters or more in length
b 2501600 Hz for a vessel 20 meters but less than 75 meters
in length
c 2502100 Hz for a vessel 12 meters but less than 20 meters
in length
Table 8605
13octave band
Fundamental For level at 1 Audibility
frequency measured meter in dB range in
Length of vessel range frequencies referred to nautical
in meters Hz Hz 2xl05 Nm2 miles
130180 145
200 or more 70200 180250 143 2
2501200 140
130180 140
75 but less than 200 130350 180250 138 15
2501200 134
250450 130
20 but less than 75 250525 450800 125 10
8001600 121
250450 120
12 but less than 20 250525 450800 115 05
8002100 111
NOTE The range of audibility in the table above is and is approximately the range at which a whistle may
usually be heard on its forward axis in conditions of still air on board
a vessel having average background noise level at the taken to be 68 dB in the octave band centered on 250 Hz and
63 dB in the octave band centered on 500 Hz
INTERNATIONAL
ANNEX In practice the range at which a whistle may be heard is
extremely variable and depends critically on weather conditions the
values given can be regarded as typical but under conditions of
strong wind or high ambient noise level at the listening post the
range may be much reduced
d Directional properties The sound pressure level of a
directional whistle shall be not more than 4 dB below the pressure level on the axis at any direction in the within 45 degrees of the axis The sound
pressure level at
any other direction in the horizontal plane shall be not more than 10
dB below the prescribed sound pressure level on the axis so that
the range in any direction will be at least half the range on the
forward axis The sound pressure level shall be measured in octave band which determines the audibility range
e Positioning of whistles When a directional whistle is to be
used as the only whistle on a vessel it shall be installed with its
maximum intensity directed straight ahead
A whistle shall be placed as high as practicable on a vessel in
order to reduce interception of the emitted sound by also to minimize hearing damage risk to personnel The level of the vessels own signal at
listening posts shall not
exceed 110 dB A and so far as practicable should not exceed 100
dB A
INLAND
ANNEX In practice the range at which a whistle may be heard is
extremely variable and depends critically on weather conditions the
values given can be regarded as typical but under conditions of
strong wind or high ambient noise level at the listening post the
range may be much reduced
8607 Directional properties
The sound pressure level of a directional whistle shall be not
more than 4 dB below the sound pressure level specified in 8605
in any direction in the horizontal plane within 45 degrees of the
forward axis The sound pressure level of the whistle at any in the horizontal plane shall not be more than 10 dB less
than the sound pressure level specified for the forward axis so that
the range of audibility in any direction will be at least half the on the forward axis The sound pressure level shall be
measured in octave band which determines the audibility range
8609 Positioning of whistles
a When a directional whistle is to be used as the only whistle
on the vessel and is permanently installed it shall be installed with
its forward axis directed forward
b A whistle shall be placed as high as practicable on a vessel
in order to reduce interception of the emitted sound by also to minimize hearing damage risk to personnel The level of the vessels own signal at
listening posts shall not
exceed 110 dB A and so far as practicable should not exceed 100
dB A
INTERNATIONAL
ANNEX III Continued
f Fitting of more than one whistle If whistles are fitted at a
distance apart of more than 100 meters it shall be so arranged that
they are not sounded g Combined whistle systems If due to the presence the sound field of a single whistle or of one of the
whistles referred to in paragraph 1 f above is likely to have a zone
of greatly reduced signal level it is recommended that a system be fitted so as to overcome this reduction For the
purposes of the Rules a combined whistle system is to be regarded
as a single whistle The whistles of a combined system shall be
located at a distance apart of not more than 100 me ters and
arranged to be sounded The frequency of any one
whistle shall differ from those of the others by at least 10 Hz
INLAND
ANNEX III Continued
8611 Fitting of more than one whistle
If whistles are fitted at a distance apart of more than 100 meters
they shall not be sounded 8613 Combined whistle systems
a A combined whistle system is a number of whistles sources operated together For the purposes of the Rules a
combined whistle system is to be regarded as a single whistle
b The whistles of a combined system shall
1 Be located at a distance apart of not more than 100
meters
2 Be sounded 3 Each have a fundamental frequency different from those
of the others by at least 100 Hz and
4 Have a tonal appropriate for the length of
vessel which shall be evidenced by at least twothirds of the
whistles in the combined system having fundamental
frequencies falling within the limits prescribed in 8603 or
if there are only two whistles in the combined system by the
higher fundamental frequency falling within the limits
prescribed 8603 NOTE if due to the presence of
obstructions the sound field of a single whistle or of one of
the whistles referred to in 8611 is likely to have a zone of
greatly reduced signal level a combined whistle system
should be fitted so as to overcome this 157
INTERNATIONAL
ANNEX Bell or gong
a Intensity of signal A bell or gong or other device sound shall produce a sound pressure level of
not less than 110 dB at a distance of 1 meter from it
b Construction Bells and gongs shall be made of material and designed to give a clear tone The diameter of
the mouth of the bell shall be not less than 300 mm for vessels of 20
meters or more in length and shall be not less than 200 mm for
vessels of 12 meters or more but of less than 20 meters in length
Where practicable i powerdriven bell striker is recommended to
ensure constant force but manual operation shall be possible The
mass of the striker shall be not less than 3 percent of the mass of
the bell
3 Approval
The construction of sound signal appliances their their installation on board the vessel shall be to the the appropriate authority of the State
whose flag the vessel is
entitled to fly
INLAND
ANNEX 8615 Towing vessel whistles
A powerdriven vessel normally engaged in pushing ahead or
towing alongside may at all times use a whistle falls within the limits prescribed by 8603 for the
longest customary composite length of the vessel and its tow
Subpart BBell or gong
8621 Intensity of signal
A bell or gong or other device having similar shall produce a sound pressure level of not less than
110 dB at 1 meter
8623 Bells and gongs shall be made of material
and designed to give a clear tone The diameter of the mouth of the
bell shall be not less than 300 mm for vessels of more than 20
meters in length and shall be not less than 200 mm for vessels of
12 to 20 meters in length The mass of the striker shall be not less
than 3 percent of the mass of the bell The striker shall be capable
of manual operation
NOTE When practicable a powerdriven bell striker is recom
mended to ensure constant force
Subpart CApproval
8631 Approval
INTERNATIONAL
ANNEX IV
Distress Signals
1 Need of assistance
The following signals used or exhibited either together indicate distress and need of assistance
a a gun or other explosive signal fired at intervals of about a
minute
b a continuous sounding with any fogsignaling apparatus
c rockets or shells throwing red stars fired one at a time at
short intervals
d a signal made by or by any other consisting of the group SOS in the Morse Code
e a signal sent by consisting of the spoken f the International Code Signal of distress indicated by NC
g a signal consisting of a square flag having above or below it
a ball or anything resembling a ball
h flames on the vessel as from a burning tar barrel oil a rocket parachute flare or a hand flare showing a red light j a
smoke signal giving off smoke
k slowly and repeatedly raising and lowering arms each side
I the alarm signal
m the alarm signal
n signals transmitted by emergency approved signals transmitted by radio communication survival craft radar 160
INLAND
ANNEX IV Distress Signals
871 Need of assistance
The following signals used or exhibited either together or sepa
rately indicate distress and freed of assistance
a A gun or other explosive signal fired at intervals of about a
minute
b A continuous sounding with any fogsignaling apparatus
c Rockets or shells throwing red stars fired one at a time at
short intervals
d A signal made by or by any other consisting of the group SOS in the Morse Code
e A signal sent by consisting of the spoken
word Mayday
f The International Code Signal of distress indicated by NC
g A signal consisting of a square flag having above or below it
a ball or anything resembling a ball
h Flames on the vessel as from a burning tar barrel oil barrel
i A rocket parachute flare or a hand flare showing a red light
j A smoke signal giving off smoke
k Slowly and repeatedly raising and lowering arms each side
I The alarm signal m The alarm signal
n Signals transmitted by emergency o Signals transmitted by systems
p A high intensity white light flashing at regular intervals from
50 to 70 times per minute
INTERNATIONAL
ANNEX 2 The use or exhibition of any of the foregoing signals except
for the purpose of indicating distress and need of assistance and the
use of other signals which may be confused with any of the above
signals is prohibited
3 Attention is drawn to the relevant sections of the of Signals the Merchant Ship Search and Rescue Manual and
the following signals
a a piece of canvas with either a black square and
circle or other appropriate symbol for from the air
b a dye marker
INLAND
ANNEX IV Continued
873 Exclusive use
The use or exhibition of any of the foregoing signals except for
the purpose of indicating distress and need of assistance and the
use of other signals which may be confused with any of the above
signals is prohibited
875 Supplemental signals
Attention is drawn to the relevant sections of the of Signals the Merchant Ship Search and Rescue Manual Union Regulations and the follow
ing signals
a A piece of canvas with either a black square and
circle or other appropriate symbol for from the air
b A dye marker
INTERNATIONAL
INLAND
ANNEX V Pilot Rules
8801 Purpose and applicability
This Part applies to all vessels operating on United States inland
waters and to United States vessels operating on the of the Great Lakes to the extent there is no conflict with
Canadian law
8803 Definitions
The terms used in this part have the same meaning as defined in
the Inland Navigational Rules Act of 1980
8805 Copy of Rules
After January 1 1983 the operator of each vessel
12 meters or more in length shall carry on board and maintain for
ready reference a copy of the Inland Navigation Rules
8809 Temporary exemption from light and shape require
ments when operating under bridges
A vessels navigation lights and shapes may be lowered if neces
sary to pass under a bridge
INTERNATIONAL
BLANK
INLAND
ANNEX V Law enforcement vessels
a Law enforcement vessels may display a flashing blue light when
engaged in direct law enforcement or public safety activities This light must
be located so that it does not interfere with the visibility of the vessels navi
gation lights
b The blue light described in this section may be displayed by vessels of the United States and the States and their Public Safety Activities
a Vessels engaged in government sanctioned public safety commercial vessels performing similar functions may display an alter
nately flashing red and yellow light signal This light signal
must be located so that it does not interfere with the visibility of the lights The light signal may be used only as signal and conveys no special
privilege Vessels using light signal during public safety activities must abide by the
Inland Navigation Rules and must not presume that the light or the them precedence or right of way
b Public safety activities include but are not limited to parades regattas or special water celebrations traffic medical assistance assisting
disabled vessels and
search and Lights on barges at bank or dock
a The following barges shall display at night and if practicable in
periods of restricted visibility the lights described in paragraph
b of this section
1 Every barge projecting into a buoyed or restricted channel
2 Every barge so moored that it reduces the available navigable width
of any channel to less than 80 meters
3 Barges moored in groups more than two barges wide or to a
maximum width of over 25 meters
4 Every barge not moored parallel to the bank or dock
b Barges described in paragraph a shall carry two lights of an intensity to be visible for at least one mile on a clear dark
night and arranged as follows
1 On a single moored barge lights shall be placed on the two from the bank or dock
2 On barges moored in group formation a light shall be placed on
each of the upstream and downstream ends of the group on the from the bank or dock
3 Any barge in a group projecting from the main body of the group
toward the channel shall be lighted as a single barge
c Barges moored in any slip or slough which is used primarily for
mooring purposes are exempt from the lighting requirements of this section
INTERNATIONAL
BLANK
INLAND
ANNEX d Barges moored in areas are exempt from the
lighting requirements of this section These areas are as Sanitary Ship Canal 43 Mile 3187 to 3188 45
1 Mile 2932 to 2939 Mile 320 to 3203 47 Mile
3 Mile 2952 to 2961 3206
5 Mile 2975 to 2978 49 Mile 3223 to 3224 51
7 Mile 298 to 2982 Mile 3228
9 Mile 2986 to 2988 53 Mile 3229 to 3272
11 Mile 2993 to 2994 Calumet Sag Channel 61
13 Mile 2998 to 3005 Mile 3165
15 Mile 303 to 3032 Little Calumet River 71 Mile
17 Mile 303 7 to 303 9 3212
21 Mile 3107 to 3109 73 Mile 3223
23 Mile 311 to 3112 Calumet River
25 Mile 3125 to 3126 81 Mile 3285 to 3287
27 Mile 3138 to 3142 83 Mile 3292 to 3294
29 Mile 3146 85 Mile 330 West bank to
31 Mile 3148 to 3153 3302
33 Mite 3157 to 316 87 Mile 3314 to 3316
35 Mile 3168 89 Mile 3322 to 3324
37 Mile 31685 to 31705 91 Mile 3326 to 3328
39 Mile 3175
41 Mile 3184 to 3189 Cumberland River
101 Mile 1268
103 Mile 191
INTERNATIONAL
BLANK
INLAND
ANNEX V Continued
8815 Lights on dredge pipelines
Dredge pipelines that are floating or supported on trestles shall
display the following lights at night and in periods of One row of yellow lights The lights must be
1 Flashing 50 to 70 times per minute
2 Visible all around the horizon
3 Visible for at least 2 miles on a clear dark night
4 Not less than I and not more than 35 meters above the
water
5 Approximately equally spaced and
6 Not more than 10 meters apart where the pipeline cross es
a navigable channel Where the pipeline does not cross a
navigable channel the lights must be sufficient in number to
clearly show the pipelines length and course
b Two red lights at each end of the pipeline including the ends in a
channel where the pipeline is separated to allow vessels to pass
whether open or closed The lights must be
1 Visible all around the horizon and
2 Visible for at least 2 miles on a clear dark night and
3 One meter apart in a vertical line with the lower light at
the same height above the water as the flashing yellow light
INTERNATIONAL
Purpose
823 Pushing vessel and vessel being pushed Composite unit
AUTHORITY 33 USC 180 30 Stat 98 49 CFR 146c2 28 Stat
64733 USC 258 49 CFR 146c3 sec 4233 RS 33 USC 322
821 Purpose
a This part contains the rules concerning the 72
COLREGS that are adopted by the Coast Guard for the guidance of
the public
823 Pushing vessel and vessel being unit
Rule 24b of the 72 COLREGS states that when a pushing vessel
and a vessel being pushed ahead are rigidly connected in a com
posite unit they are regarded as a powerdriven vessel and must
exhibit the lights under Rule 23 A composite unit is interpreted to
be a pushing vessel that is rigidly connected by mechanical means to
a vessel being pushed so they react to sea and swell as one means does not include the following a Lines b
Hawsers c Wires d Chains
CGD 76133 42 FR 35792 July 11 1977 Redesignated by CGD 81017
46 FR 28154 May 26 1981
INLAND
Purpose 903 Pushing vessel and vessel being pushed 33 USC 2071 49 CFR 901 Purpose
a This part contains the rules for the Inland Rules
These rules are intended as a guide to assist the pub lic
and promote compliance with the Inland Rules
903 Pushing vessel and vessel being unit
Rule 24b of the Inland Rules states that when a pushing vessel and
a vessel being pushed ahead are rigidly connected in a com posite
unit they are regarded as a powerdriven vessel and must exhibit the
lights prescribed in Rule 23 A composite unit is inter
preted to be
the combination of a pushing vessel and a vessel being pushed
ahead that are rigidly connected by mechanical means so they react
to sea and swell as one vessel Mechanical means does not wires hawsers or chains
CGD 8301148 FR 51621 NOV 10 1983
COLREGS DEMARCATION Sec
8001 General basis and pur 80520 Cape Hatteras NC to
pose of demarcation lines Cape Lookout NC
80525 Cape Lookout NC to
ATLANTIC COAST Cape Fear NC
80530 Cape Fear NC to New
FIRST DISTRICT River Inlet NC
80105 Calais ME to SEVENTH DISTRICT
Cape Small ME
80110 Casco Bay M E 80703 Little River Inlet SC to
80115 Portland Head ME to Cape Romain SC
Cape Ann MA 80707 Cape Romain SC to
80120 Cape Ann MA to Sullivans Island SC
Marblehead Neck MA 80710 Charleston Harbor SC
80125 Marblehead Neck MA to 80712 Morris Island SC to
Nahant MA Hilton Head Island SC
80130 Boston Harbor entrance 80715 Savannah River
80135 Hull MA to Race Point 80717 Tybee Island GA to
MA St Simons Island GA
80145 Race Point MA to 80720 St Simons Island GA to
Watch Hill RI Amelia Island FL
80150 Block Island RI 80723 Amelia Island FL to
80155 Watch Hill RI to Cape Canaveral FL
Montauk Point NY 80727 Cape Canaveral FL to
80160 Montauk Point NY to Miami Beach FL
Atlantic Beach NY 80730 Miami Harbor FL
80165 New York Harbor 80735 Miami FL to
801 70 Sandy Hook NJ to Long Key FL
Toms River NJ
PUERTO RICO AND
FIFTH DISTRICT VIRGIN Toms River NJ to SEVENTH DISTRICT
Cape May N J 80503 Delaware
Bay 80738 Puerto Rico and Virgin
80505 Cape Henlopen DE to Islands
Cape Charles VA
80510 Chesapeake Bay
Entrance VA
GULF COAST SEVENTH PACIFIC COAST ELEVENTH
DISTRICT Long Key FL to Cape Sec
Sable FL 801105 Santa Catalina Island
80745 Cape Sable FL to CA
Cape Romano FL 801110 San Diego Harbor CA
80748 Cape Romano FL to 801115 Mission Bay CA
Sanibel Island FL 801120 Oceanside Harbor CA
80750 Sanibel Island FL to 801125 Dana Point Harbor CA
St Petersburg FL 801130 Newport Bay CA
80753 St Petersburg FL to 801135 San Pedro Bay
Anclote FL Anaheim Bay CA
80755 Anclote FL to 801140 Redondo Harbor CA
the Suncoast Keys FL 801145 Marina Del Rey CA
80757 Suncoast Keys FL to 801150 Port Hueneme CA
Horseshoe Point FL 801155 Channel Islands Horseshoe Point FL to CA
Rock Island FL
TVVELFTH DISTRICT
EIGHTH DISTRICT
801205 San Luis Obispo Bay
80805 Rock Island FL to CA
Cape San BIas FL 801210 EsteroMorro Bay CA
80810 Cape San BIas FL to 801215 Monterey Harbor CA
Perdido Bay FL 801220 Moss Landing Mobile Bay AL to CA
the Chandeleur Island LA 801225 Santa Cruz Harbor CA
80825 Mississippi Passes LA 801230 Pillar Point Harbor CA
80830 Mississippi Passes LA to 801250 San Francisco Harbor
Point Au Fer LA CA
80835 Point Au Fer LA to 801255 Bodega and Tomales
Calcasieu Pass LA Bay CA
80840 Sabine Pass TX to 801260 Albion River CA
Galveston TX 801265 Noyo River CA
80845 Galveston TX to 801270 Bay
Freeport TX CA
80850 Brazos River TX to 801275 Crescent City Harbor
the Rio Grande TX CA
DISTRICT ALASKA
Sec SEVENTEENTH Chetco River OR
801310 Rogue River OR 1705 Coquille River OR
801320 Coos Bay OR AUTHORITY Rule 1
801325 Umpqua River OR International Regulations for
801330 Sinslaw River OR Preventing Collisions at Sea
801335 Alsea Bay OR 1972 as rectified EO Yaquina Bay OR Pub L 9575 91 Stat 308 14
801345 Depoe Bay OR USC 249 CFR 146b Netarts Bay OR otherwise Tillamook Bay OR SOURCE CGD 77118a 42
801360 Nehalem River OR FR 35784 July 11 1977 Columbia River otherwise noted
Entrance Willapa Bay WA Grays Harbor WA
801380 Quillayute River 8001 General basis and
801385 Strait of Juan de Fuca purpose of demarcation lines
801390 Haro Strait and Strait a The regulations in this part
of Georgia establish the lines of demarca
801395 Puget Sound and tion delineating those waters
Adjacent Waters upon which mariners shall com
ply with the PACIFIC ISLANDS Regulations for Preventing
Collisions at Sea 1972 72
FOURTEENTH DISTRICT COLREGS and those waters
upon which mariners shall com
801410 Hawaiian Island ply with the Inland Navigation
Exemption from General rule Mamala Bay Oahu HI b The waters inside of the
801430 Kaneohe Bay Oahu HI lines are Inland Rules Waters
801 440 Port Allen Kauai H I The waters outside the lines are
801450 Nawiliwili Harbor COLREGS Waters
Kauai HI CGD 82029 47 FR Kahului Harbor Maul May 6 1982 CGD 83003 48
HI FR 7442 Feb 22 1983
801470 Kawaihae Harbor
Hawaii HI
801480 Hilo Harbor Hawaii HI
801490 Apra Harbor US
Territory of Guam
801495 US Pacific Island
ATLANTIC COAST the harbors bays and inlets on
the east coast of Maine New
FIRST DISTRICT Hampshire and from Portland Head to Halibut
80105 Carats ME to Cape Point at Cape Ann
Small ME
The 72 COLREGS shall apply b A line drawn from the
on the harbors bays and inlets southernmost tower on Gerrish
on the east coast of Maine from Island charted in Bridge at Calais position latitude 430040 N lon
ME to the gitude 70 412 W to
extremity of Bald Head at Cape Whaleback Light thence to
Small Jeffrey Point Light 2A thence to
the extremity
80110 Casco Bay M E of Frost Point
a A line drawn from the c A line drawn from the extremity of ernmost extremity of Farm Point
Bald Head at Cape Small to the to Annisquam Harbor extremity of
Ragged Island thence to the 80120 Cape Ann MA to
southern tangent of Jaquish Marblehead Neck MA
Island thence to Little Mark a Except inside lines specifi
Island Monument Light thence to cally described in this section
the northernmost extremity of the 72 COLREGS shall apply on
Jewell Island the harbors bays and inlets on
the east coast of b A line drawn from the tower from Halibut Point at Cape Ann
on Jewell Island charted in to Marblehead position latitude 43
406 N longitude 70 059 W b A line drawn from
to the extremi Gloucester Harbor Breakwater
ty of Outer Green Island Light to the twin towers charted
in approximate position latitude
c A line drawn from the 42351N longitude extremity of
Outer Green Island to Ram c A line drawn from the
Island Ledge Light thence to westernmost extremity of Head Light Point to the easternmost
extremity of House Island
80115 Portland Head ME thence to Bakers Island Light
to Cape Ann MA thence to Marblehead Light
a Except inside lines specifi
cally described in this section CGD 81017 46 FR 28154
the 72 COLREGS shall apply on May 26 1981
80125 Marblehead Neck shoreline
MA to Nahant MA CGD 81017 46 FR 28154
The 72 COLREGS apply on May 26 1981
the harbors bays and inlets on
the east coast of Massachusetts 80145 Race Point MA to
from Marblehead Neck to the Watch Hail tower at in approximate position a Except inside lines specifi
latitude 42254 N longitude cally described in this W the 72 COLREGS shall apply on
CGD 81017 46 FR 28154 the sounds bays harbors and
May 26 1981 inlets along the coast of Cape
Cod and the southern coasts of
80130 Boston Harbor Massachusetts and Rhode from Race Point to Watch Hill
A line drawn from eastern most b A line drawn from Nobska
tower at Nahant charted in Point Light to Tarpaulin position latitude Light on the southeastern side of
42254 N longitude 700546 Naushon Island thence from the
W to Boston Lighted Horn Buoy southernmost tangent of
B thence to the eastern most Naushon Island to the
radio tower at Hull charted in easternmost extremity position latitude Nashawena Island thence from
42167 N longitude 70526 the southwestern most extremity
W of Nashawena Island to the
CGD 81017 46 FR 28154 easternmost extremity of
May 26 1981 Cuttyhunk Island thence from
the southwestern tangent of
80135 Hull MA to Race Cuttyhunk Island to the tower on
Point MA Gooseberry Neck charted in
approximate position latitude
a Except inside lines 41291 N longitude 71 in this section the 72
COLREGS apply on the harbors c A line drawn from and inlets on the east coast Breakwater Light 2 tangent to the
of Massachusetts from the southernmost part of radio tower at Hull Point charted in in approximate position position latitude 41 42167 N longitude
longitude 71 148 W
700526 W to Race Point on
Cape Cod
b A line drawn from Light 4 south to the
d An eastwest line drawn h A line drawn from
through Beavertail Light between Threemile Harbor West
Brenton Point and the Boston Breakwater Light to Three Mile
Neck shoreline Harbor East Breakwater Light
CGD 81017 46 FR 28154
May 26 1981 i A line drawn from Montauk
West Jetty Light 1 to Montauk
80150 Block Island RI East Jetty Light 2
The 72 COLREGS shall apply Redesignated by CGD 87
on the harbors of Block Island 0086 52 FR 25218 July 6 1987
80155 Watch Hill RI to 80160 Montauk Point NY
Montauk Point NY to Atlantic Beach NY
a A line drawn from Watch a A line drawn from
Hill Light to East Point on Fishers Shinnecock Inlet East
Island Breakwater Light to Shinnecock
Inlet West Breakwater Light 1
b A line drawn from Race
Point to Race Rock Light thence b A line drawn from Moriches
to Little Gull Island Light thence Inlet East Breakwater Light to
to East Point on Plum Island Moriches Inlet West Breakwater
Light
c A line drawn from Plum
Island Harbor East Dolphin Light c A line drawn from Fire
to Plum Island Harbor West Island Inlet Breakwater Light
Dolphin Light 348 true to the southernmost
extremity of the spit of land at
d A line drawn from Plum the western end of Oak Beach
Island Light to Orient Point Light
thence to Orient Point d A line drawn from Jones
Inlet Light 322 true across the
e A line drawn from the light southwest tangent of the island
house ruins at the southwestern on the north side of Jones Inlet to
end of Long Beach Point to the Point
Redesignated by CGD 87
f A line drawn from Coeces 0086 52 FR 25218 July 6 1987
Harbor Entrance Light to Sungic
Point 80165 New York Harbor
g A line drawn from Nichols A line drawn from East
Point to Cedar Island Light Rockaway Inlet Breakwater Light
to Sandy Hook Light
80170 Sandy Hook NJ to shoreline across Corson Inlet
Toms River NJ f A line formed by the center
a A line drawn from Shark line of the Townsend Inlet
River Inlet North Breakwater Highway Bridge
Light 2 to Shark River Inlet South g A line formed by the Light 1 line of Seven Mile Beach and
b A line drawn from Hereford Inlet Inlet North h A line drawn from Light 4 to May Inlet West
Jetty Inlet South CGD 870086 52 FR light 3 July 6 1987
c A line drawn from North Breakwater Light 4A 80503 Delaware Bay
to the seaward extremity of the A line drawn from Cape May
submerged Barnegat Inlet South Light to Harbor of Refuge thence along the thence to the breakwater to the extremity of
Cape 80505 Cape Henlopen DE
FIFTH DISTRICT to Cape Charles VA
a A line drawn from the sea
80501 Toms River NJ to ward extremity of Indian River
Cape May NJ Inlet North Jetty to Indian River
a A line drawn from the sea Inlet South Jetty Light
ward tangent of Long Beach b A line drawn from Ocean
Island to the seaward tangent to City Inlet Light 6 225 true across
Pullen Island across Beach Ocean City Inlet to the
Haven and Little Egg Inlets submerged south breakwater
b A line drawn from the c A line drawn from
seaward tangent of Pullen Island Assateague Beach Tower Light
to the seaward tangent of to the tower charted at Island across 370526 N longitude Inlet d A line
formed by the range
c A line drawn from the sea of Wachapreague Inlet Light 3
ward extremity of Absecon Inlet and Parramore Beach Lookout
North Jetty to Atlantic City Light Tower drawn across
d A line drawn from the Wachapreague point of Longport e A line drawn from the look
at latitude 30 182 N out tower charted on the north ern
Iongitude 75322 W to the end of Hog Island to the sea point of Ocean tangent of Parramore Beach
City at latitude 39 176 N lon f A Line drawn 207 true from
gitude 74331 W across Great the lookout tower charted on the
Egg Harbor Inlet southern end of Hog Island
e A line drawn parallel with
the general trend of 180
across Great Machipongo Inlet c A line drawn across Drum
g A line formed by the range Inlet parallel with the general
of the two cupolas charted on the trend of the highwater end of Cobb Island
drawn across Sand Shoal Inlet 80525 Cape Lookout NC
h Except as provided else to Cape Fear NC
where in this section from Cape
Henlopen to Cape Charles lines a A line drawn from Cape
drawn parallel with the general Lookout Light to the seaward
trend of the highwater shoreline tangent of the southeastern end
across the entrances to small of Shackleford Banks
bays and inlets b A line drawn from
Morehead City Channel Range
80510 Chesapeake Bay Front Light to the VA extremity of the Beaufort Inlet
west jetty
A line drawn from Cape c A line drawn from the
Charles Light to Cape Henry southernmost extremity of Bogue
Light Banks at latitude 34 387 N
longitude 77060 W across
80515 Cape Henry VA to Bogue Inlet to the Hatteras NC extremity of Bear Beach at
a A line drawn from Rudee latitude 340385 N longitude 77
Inlet Jetty Light 2 to Rudee Inlet 071 W
Jetty Light 1 d A line drawn from the tower
b A line formed by the center charted in approximate position
line of the highway bridge across latitude 34 315 N Inlet 770208 W to the seaward tan
gent of the shoreline on the
80520 Cape Hatteras NC northeast side of New River Inlet
to e A line drawn across New
Topsail Inlet between the closest
a A line drawn from Hatteras extremities of the shore on either
Inlet Lookout Tower 30118N side of the inlet from latitude 34
75449W 255 true to the east 208 N longitude 77 392 W
ern end of Ocracoke Island to latitude 34 206 N longitude
b A line drawn from the west 77 396 W
ernmost extremity of at latitude 35 040 N
longitude 76 008 W to extremity of
Portsmouth Island at latitude 35
037 N longitude 76 023 W
f A line drawn from the sea line drawn parallel with the gen
ward extremity of the jetty on the eral trend of the side of Masonboro Inlet shoreline across Hog Inlet
to the seaward extremity of the thence a line drawn from Murrels
jetty on the southeast side of the Inlet Light 2 to Murrels Inlet Light
Inlet 1 thence a line drawn parallel
with the general trend of the
g Except as provided else highwater shoreline across
where in this section from Cape Midway Inlet Pawleys Inlet and
Lookout to Cape Fear lines North Inlet
drawn parallel with the general c A line drawn from the chart
trend of the highwater shoreline ed position of Winyah Bay North
across the entrance of small Jetty End Buoy 2N south to the
bays and inlets Winyah Bay South Jetty
d A line drawn from Santee
80530 Cape Fear NC to Point to the seaward tangent of
Little River Inlet NC Cedar Island
e A line drawn from Cedar
a A line drawn from the aban Island Point west to Murphy
doned lighthouse charted in position latitude 33 f A northsouth line N longitude 78 001 W 790203 W drawn from Murphy
across the Cape Fear River Island to the to Oak Island Light extremity of Cape Island Point
b Except as provided else 80707 Cape Romain SC to
where in this section from Cape Sullivans Island SC
Fear to Little River Inlet lines
drawn parallel with the general a A line drawn from the west
trend of the highwater shoreline ern extremity of Cape Romain
across the entrance to small 292 true to Racoon Key on the
inlets west side of Racoon Creek
SEVENTH DISTRICT b A line drawn from the west
ernmost extremity of Sandy
80703 Little River Inlet SC Point across Bull Bay to the
to Cape Romain SC northernmost extremity of
Northeast Point
a A line drawn from the west
ernmost extremity of the sand c A line drawn from the
spit on Bird Island to the east southernmost extremity of Bull
ernmost extremity of Waties Island to the across Little River Inlet extremity of Capers Island
b From Little River Inlet a d A line formed by the over
head power cable from Capers
Island to Dewees Island
e A line formed by the over Island through Folly River
head power cable from Dewees Daybeacon 10 across Stono
Island to Isle of Palms River to the shoreline of Sandy
f A line formed by the center Point
line of the highway Isle of Palms and c A line drawn from the
Sullivans Island over Breach southernmost extremity of
Inlet Seabrook Island 257 true
across the North Edisto River
80710 Charleston Harbor Entrance to the shore of Botany
SC Bay Island
a A line formed by the sub d A line drawn from the
merged north jetty from the microwave antenna tower on
shore to the west end of the Edisto Beach charted in approxi
north jetty mate position latitude 32293 N
longitude 80 192 W across St
b A line drawn from across Helena Sound to the aban doned
the seaward extremity of the lighthouse tower on Harbor Jetties Island
c A line drawn from the west e A line formed by the center
end of the South Jetty across the line of the highway bridge
South Entrance to Charleston between Hunting Island and
Harbor to shore on a line formed Fripp Island
by the submerged south jetty
f A line following the general
80712 Morris Island SC to trend of the seaward Head Island SC shoreline across Cabretta Inlet
a A line drawn from the east 80715 Savannah tip of Folley Island to the
abandoned lighthouse tower on A line drawn from the south
the north side of Lighthouse Inlet ernmost tank on Hilton Head
thence west to the shoreline of Island charted in Island position latitude 320067 N lon
gitude 80 493 W to Bloody
b A straight line drawn from Point Range Rear Light thence
the seaward tangent of Folly to Tybee Range Rear Light
80717 Tybee Island GA to h A northsouth line longi
St Simons Island GA tude 81 171 W drawn from
the point of
a A line drawn from the Wolf Island to the extremity of most point on Little St Beach on Tybee 255 true across Tybee
Inlet to the shore of Little Tybee i A line drawn from the north
Island south of the entrance to easternmost extremity of Sea
Buck Hammock Creek Island 045 true to Little St
Simons Island
b A straight line drawn from
the northernmost extremity of j An eastwest line from the
Wassaw Island 031 true through southernmost extremity of Sea
Tybee River Daybeacon I to the Island across Goulds Inlet to St
shore of Little Tybee Island Simons Island
c A line drawn approximately 80720 St Simons Island GA
parallel with the general trend of to Amelia Island FL
the highwater shorelines from the
seaward tangent of Wassau a A line drawn from St
Island to the seaward tangent of Simons Light to the Point on Ossabaw most tank on Jekyll Island chart
Island ed in approximate position lati
tude 31 059 N longitude 81
d A northsouth line 245 W
longitude 81 084 W drawn
from the southernmost extremity b A line drawn from the
of Ossabaw Island to St southernmost tank on Island Island charted in approximate
position latitude 31 016 N
e A northsouth line longi longitude 81 252 W to coordi
tude 81 106W drawn from the nate latitude 300594 extremity of St longitude 81 237 W 05 nauti
Catherines Island to Northeast cal mile east of the charted posi
Point on Blackbeard Island tion of St Andrew Sound Lighted
Buoy 32 thence to the aban
f A line following the general doned lighthouse tower on the
trend of the seaward highwater north end of Little across Cabretta Inlet Island charted in approximate
position latitude 30 585 N
g A northsouth line longi longitude 81 248 W
tude 81 169 W drawn from
the point on
Sapelo Island to Wolf Island
c A line drawn across the St Lucie extremity of the St e A line drawn from the sea
Marys Entrance Jetties ward extremity of Jupiter Inlet
North Jetty to the northeast
80723 Amelia Island FL to extremity of the concrete apron
Cape Canaveral FL on the south side of Jupiter inlet
f A line drawn across the sea
a A line drawn from the ward extremity of the Lake extremity of Inlet Island to the g A line drawn across extremity
of seaward extremity of the
Little Talbot Island Boynton Inlet Jetties
b A line formed by the center h A line drawn from Boca
line of the highway bridge from Raton Inlet North Jetty Light 2 to
Little Talbot Island to Fort Boca Raton Inlet South Jetty
George Island Light 1
c A line drawn across the i A line drawn from extremity of the St Inlet Light to Hillsboro Inlet
Johns River Entrance Jetties Entrance Light 2 thence to
d A line drawn across the Hillsboro Inlet Entrance Light 1
seaward extremity of the St thence west to the Inlet Jetties j A line drawn across the sea
e A line formed by the center ward extremity of the Port
line of the highway bridge over Everglades Entrance Inlet k A line formed by the center
f A line drawn across the sea line of the highway bridge over
ward extremity of the Ponce de Bakers Haulover Inlet
Leon Inlet Jetties
80730 Miami Harbor FL
80727 Cape Canaveral FL
to Miami Beach FL A line drawn across the sea
ward extremity of the Miami
a A line drawn across the Harbor Government Cut extremity of the Entrance Channel 80735 Miami FL 10 Key
b A line drawn across the
seaward extremity of the a A line drawn from the
Sebastian Inlet Jetties southernmost extremity of Fisher
c A line drawn across the Island 212 o true to the point lat
seaward extremity of the Fort itude 25 450 N Inlet Jetties 80086 W on Virginia Key
d A northsouth line longi
tude 800097 W drawn across
b A line formed by the center across the entrance of San Juan
line of the highway bridge Virginia Key and Key
Biscayne GULF COAST
c A line drawn from Cape SEVENTH Light to the northern on Soldier Key 80740 Long Key FL to
d A line drawn from the Cape Sable extremity on
Soldier Key to the northernmost A line drawn from the
extremity of the Ragged Keys microwave tower charted on
e A line drawn from the Rag Long Key at approximate posi
ged Keys to the southernmost tion latitude 24488N of Angelfish Key fol 80496W to Long Key Light 1
lowing the general trend of the thence to Arsenic Bank Light 2
seaward shoreline thence to Sprigger Bank Light 5
f A line drawn on the center thence to Schooner Bank Light 6
line of the Overseas Highway thence to Oxfoot Bank Light 10
US 1 and bridges from latitude thence to East Cape Light 2
25193 N longitude 800160 thence through East Cape
W at Little Angelfish Creek to Daybeacon 1A to the shoreline at
the radar dome charted on Long East Cape
Key at approximate 24 493 N longitude 80 80745 Cape Sable FL to
492 W CGD 8t017 46 FR Cape Romano FL
28154 May 26 1981
a A line drawn following the
PUERTO RICO AND general trend of the mainland
VIRGIN ISLANDS highwater shoreline from Cape
Sable at East Cape to Little
SEVENTH DISTRICT Shark River Light 1 thence to
westernmost extremity of Shark
80738 Puerto Rico and Point thence following the gen
Virgin Islands eral trend of the mainland high
water shoreline crossing the
a Except inside lines specifi
entrances of Harney River
cally described in this section Broad Creek Broad River
the 72 COLREGS shall apply on Rodgers River First Bay
all other bays harbors and Chatham River Huston River to
lagoons of Puerto Rico and the the shoreline at Virgin Islands latitude 25418 N longitude 81
b A line drawn from Puerto 179 W
San Juan Light to Cabras Light
b The 72 COLREGS shall Wiggins Big Hickory New and
apply to the waters surrounding Big Cados Passes parallel to the
the Ten Thousand Islands and general trend of the seaward
the bays creeks inlets and highwater between Chatham Bend g A straight line drawn from
and Marco Island except inside Sanibel Island Light through
lines specifically described in thisMatanzas Pass Channel Light 2
part to the shore of Estero Island
CGD 81017 46 FR 28154
c A northsouth line drawn at May 26 81 202 W across the
entrance to Lopez River 80750 Sanibel Island FL
to St Petersburg FL
d A line drawn across the
entrance to Turner River parallel a A line formed by the center
to the general trend of the shore line of the highway bridge over
line Blind Pass between Captiva
Island and Sanibel Island and
e A line formed by the center lines drawn across Redfish and
line of Highway 92 Bridge at Captiva Passes parallel to the
Goodland general trend of the seaward
highwater shorelines
80748 Cape Romano FL b A line drawn from La Costa
to Sanibel Island FL Test Pile North Light to Port
a A line drawn across Big Boca Grande Light
Marco Pass parallel to the gen
eral trend of the seaward high c Lines drawn across
water shoreline Gasparilla and Stump Pasees
parallel to the general trend of
b A line drawn from the north the seaward highwater shore
westernmost extremity of Island 000 T across
Capri Pass d A line across the seaward
extremity of Venice Inlet Jetties
c Lines drawn and Little Marco e A line drawn across
Passes parallel to the general Midnight Pass parallel to the
trend of the seaward highwater general trend of the highwater shoreline
d A line from the seaward f A line drawn from Big
extremity of Gordon Pass South Sarasota Pass Light 14 to the
Jetty 014 true to the shoreline southernmost extremity of Lido
at approximate coordinate lati Key
tude 26o057 N longitude 81
481 W g A line drawn across New
e A line drawn across the Pass tangent to the extremity of Doctors highwater shoreline of Longboat
Pass Jetties Key
f Lines drawn across
h A line drawn across Anchorage South Entrance Pass parallel to the 7 thence to Anclote Key
seaward highwater shoreline 28100N 82506w thence a
straight line through Anclote
i A line drawn from the north River Cut B Range Rear Light extremity of Bean the to the of Egmont Key 80755 Anclote FL to the
Suncoast Keys FL
j A straight line drawn from
Egmont Key Light through a Except inside lines specifi
Egmont Channel Range Rear cally described in this to the shoreline on Mullet the 72 COLREGS shall apply on
Key the bays bayous creeks mari
nas and rivers from Anclote to
k A line drawn from the north the Suncoast Keys
ernmost extremity of Mullet Key
across Bunces Pass and South b A northsouth line drawn at
Channel to PassaGrille longitude 820383 W across the
Channel Light 8 thence to Pass River Channel Daybeacon 9
thence to the 80757 Suncoast Keys FL
extremity of Long Key to Horseshoe Point FL
CGD 81017 46 FR 28154
May 26 1981 a Except inside lines specifi
cally described in this section
80753 St Petersburg FL the 72 COLREGS shall apply on
to the Anclote FL the bays bayous creeks and
marinas from the Suncoast Keys
a A line drawn across Blind to Horseshoe Point
Pass between Treasure Island
and Long Key parallel with the b A line formed by the trend of the seaward line of Highway 44 Bridge shoreline the Salt River
b Lines formed by the center c A northsouth line drawn
line of the highway bridges over through Crystal River and Clearwater Passes Daybeacon 25 across the river
entrance
c A line drawn and Hurricane Passes d A northsouth line with the general trend of through the Cross Florida Barge
the shore Canal Daybeacon 48 across the
line canal
d A line drawn from the north e A northsouth line drawn
ernmost extremity of through Withlacoochee Island to Anclote
Daybeacon 40 across the river Marks Channel Light 11 thence
f A line drawn from the west to the southernmost extremity of
ernmost extremity of South Point Live Oak Point thence in a
north to the shoreline across the straight line through Shell River Entrance Light to the southernmost
g A line drawn from position extremity of Ochlockonee 29o166 N longitude 83 thence to Bald Point along
067 W 300 o true to the longitude of Hog Island d A line drawn from the south
h A northsouth line drawn shore of Southwest Cape at lon
through Suwannee River Wadley gitude 840227 W to Dog Island
Pass Channel Daybeacons 30 Reef East Light 1 thence to
and 31 across the Suwannee Turkey Point Light 2 thence to
River the easternmost extremity of Dog
Island
80760 Horseshoe Point e A line drawn from the west
FL to Rock Islands FL ernmost extremity of Dog Island
a Except inside lines specifi
to the easternmost extremity of
cally described provided in this St George the 72 COLREGS shall f A line drawn across the sea
apply on the bays bayous ward extremity of the St marinas and dyers from Island Channel Point to the Rock g A line drawn
from the westernmost extremity of Sand
b A northsouth line drawn Island to West Pass Light 7
through Steinhatchee River Light h A line drawn from the west
21 ernmost extremity oh St Vincent
c A line drawn from Island to the southeast River Approach ter shoreline of Indian FR east across the at longitude
85135 W
entrance to Fenholloway River
80810 Cape San Bias FL
EIGHTH DISTRICT to Perdido Bay FL
80805 Rock Island FL to a A line drawn from St
Cape San Bras FL Joseph Bay Entrance Range A
a A northsouth line drawn Rear Light through St Joseph
from the Econfina River Light to Bay Entrance Range B Front
the opposite shore Light to St Joseph Point
b A line drawn from Gamble
Point Light to the southernmost b A line drawn across the
extremity of Cabell Point mouth of Salt Creek as an exten
c A line drawn from St Marks sion of the general trend of the
Range Rear Light to St shoreline to continue across the
inlet to St Andrews sound in the
middle of Crooked Island
c A line drawn from the north e A eastwest line extremity of Crooked 300147 N drawn between the
Island 000 T to the mainland westernmost extremity of Horn
d A line drawn from the east Island to the extremity of Shell Island extremity of Ship Island
120 true to the shoreline across f A curved line drawn follow
the east entrance to St Andrews ing the general trend of the sea
Bay ward highwater shoreline of Ship
e A line drawn between the end of the St Andrews g A line drawn from Ship
Bay Entrance Jetties Island Light to Chandeleur Light
f A line drawn between the thence in a curved line end of the the general trend of the Bay Entrance highwater
shorelines of the
Jetties Chandeleur Islands to the island
g A eastwest line drawn from at latitude 29441 N McRee Leading Light across 88530W thence to latitude
the Pensacola Bay Entrance 29265N longitude 88556 VV
along latitude 30195N
h A line drawn between the 80825 Mississippi end of the Perdido Pass LA
Jetties a A line drawn from latitude
29265N longitude 88556W
80815 Mobile Bay AL to to latitude 29 106N longitude
the Chandeleur Islands LA 88598W thence to latitude
a A line drawn across the in 29035N longitude to Little Lagoon as an exten thence to latitude of the general trend of the longitude
89043 W
shoreline b A line drawn from latitude
b A line drawn from Mobile 28588N longitude Light to Dauphin Island to latitude 28 573N Light No 1 to the east 89053W thence to
latitude
ern corner of Fort Gaines at 285695N longitude Point W thence to latitude 29004N
c A line drawn from the west longitude 89098 W extremity of Dauphin following the general trend of the
Island to the easternmost seaward highwater shoreline in a
extremity of Petit Bois Island northwesterly direction to latitude
d A fine drawn from Horn 29034N longitude Pass Entrance Range W thence west to latitude 29
Front Light on Petit Bois Island to 035N longitude 89155 W
the easternmost extremity of thence following the general
Horn Island trend of the seaward in a southwesterly tude 89261 W thence follow
direction to latitude 280577 N ing the general trend of the sea
longitude 89o223 W ward highwater jetty and shore
c A line drawn from latitude line in a north N longitude 89o223 direction to Old Tower latitude 28
W to latitude 28 514 N 588 N longitude 890233 W
longitude 89o245 W thence to thence to West Bay Light 28515 N longitude to coordinate latitude 29o052 N
89271 W thence to latitude longitude 89o243 W thence a
28o5265 N longitude 89271 curved line following the general
W thence to the seaward trend of the highwater of the Southwest Pass to Point Au Fer Island except as
West Jetty located at latitude otherwise described in this
28545 N longitude 89261 section
W b A line drawn across the
d A line drawn from seaward extremity of the River South Pass Waterway Bayou Jetty Light 4 to Mississippi entrance South Pass West
Jetty c An eastwest line drawn
Light thence following the from the westernmost trend of the seaward of Grand Terre Islands in the
highwater shoreline in a north direction of 194 o true to the
westerly direction to coordinate Grand Isle Fishing Jetty 290034 N longitude d A line drawn between the
890130 W thence west to seaward extremity of the latitude 290035 N Pass 89155W thence e A line drawn from the the general trend
of the ernmost extremity of the highwater shoreline in a Island to the direction extremity of Isles Dernieres
River Southwest Pass f A northsouth line Light from Caillou Bay Light 13 across
e A line drawn from Caillou River Southwest Pass g A line drawn 107 true from
Entrance Light thence to the Caillou Bay Boat Landing Light
seaward extremity of theacross the entrances to Pass West Jetty Bayou du Large and Bayou
located at coordinate latitude 28 Grand N Iongitude 89 261 W h A line drawn on an axis of
103 true through Taylors Bayou
80830 Mississippi Passes Entrance Light 2 across the
LA to Point Au Fer LA entrances to Jack Stout Bayou
a A line drawn from the sea Taylors Bayou Pelican Pass
ward extremity of the Southwest and Bayou de West
Pass West Jetty located at coor
dinate latitude 28545 N Iongi
80835 Point Au Fer LA to Sabine Pass East Jetty Light to
Calcasieu Pass LA the seaward end of the Sabine
a A line drawn from Point Au Pass West Jetty
Fer to Atchafalaya Channel Light b A line drawn across the
34 thence Point Au Fer Reef small boat passes through the
Light 33 Atchafalaya Bay Sabine Pass East and West
Pipeline Light D latitude 29250 Jetties
N longitude 91317 W thence c A line formed by the Bay Light 1 latitude line of the highway bridge over
29 253 N longitude 910358 Rollover Pass at thence South Point
b Lines following the general 80845 Galveston TX to
trend of the highwater shoreline Freeport TX
drawn across the bayou canal a A line drawn from
inlets from the Gulf of Mexico Galveston North Jetty Light 6A to
between South Point and Galveston South Jetty Light 5A
Calcasieu Pass except as other b A line formed by the center
wise described in this section line of the highway bridge over
c A line drawn on an axis of San Luis Pass
140 true through Southwest c Lines formed by the Bay Light 4 lines of the highway Southwest Pass over the
inlets to Christmas Bay
d A line drawn across the Cedar Cut and Drum Bay
seaward extremity of the d A line drawn from the sea
Freshwater Bayou Canal ward extremity of the Jetties North Jetty to Freeport Entrance
e A line drawn from Light 6 thence Channel East Jetty Entrance Light 7 thence the
Light 6 to Mermentau Channel seaward extremity of Freeport
West Jetty Light 7 South Jetty
f A line drawn from the radio
tower charted in approximate 80850 Brazos River TX to
position latitude 29457 N lon
the Rio Grande TX
gitude 93063 W 115 true a Except as Mermentau Pass described in this section lines
g A line drawn across the
drawn continuing the extremity of the
trend of the seaward Pass Jetties shorelines across the inlets to
Brazos River Diversion Channel
80840 Sabine Pass TX to San Bernard River Cedar TX Brown Cedar Cut Colorado
a A line drawn from the River Matagorda Bay
Cedar Bayou Corpus Christi Bay North Jetty Light 1
Bay and Laguna Madre
801120 Oceanside Harbor
b A line drawn across the CA
seaward extremity of Channel North Jetties A line drawn from Oceanside
South Jetty Light 4 to Oceanside
c A line drawn from the sea Breakwater Light 3
ward tangent of at Decros Point to 801125 Dana Point Light CA
d A line drawn across the A line drawn from Dana Point
seaward extremity of the Jetty Light 6 to Dana Point
Aransas Pass Jetties Breakwater Light 5
e A line drawn across the 801130 Newport Bay CA
seaward extremity of the Entrance Jetties A line drawn from Newport Bay
East Jetty Light 4 to Newport Bay
f A line drawn across the sea West Jetty Light 3
ward extremity of the Pass Jetties 801135 San Pedro Bay
Anaheim Bay CA
PACIFIC COAST
a A line drawn across the
ELEVENTH DISTRICT seaward extremities of the
Anaheim Bay Entrance East
801105 Santa Catalina Jetties thence to Long Beach
Island CA Breakwater East End Light 1
The 72 COLREGS shall apply b A line drawn from Long
to the harbors on Santa Catalina Beach Channel Entrance Light 2
Island to Long Beach Light
801110 San Diego Harbor c A line drawn from Los
CA Angeles Main Entrance Channel
Light 2 to Los Angeles Light
A line drawn from Zuniga Jetty
Light V to Zuniga Jetty Light 801140 Redondo Harbor
Z thence to Point Loma Light CA
80111 5 Mission Bay CA A line drawn from Redondo
Beach East Jetty Light 2 to
A line drawn from Mission Bay Redondo Beach West Jetty Light
South Jetty Light 2 to Mission 3
801145 Marina Del Rey Barbara Harbor Light
a A line drawn from Marina
Del Rey Breakwater South Light TWELFTH DISTRICT
1 to Marina Del Rey Light 4
801205 San Luis Obispo
b A line drawn from Marina Bay CA
Del Rey Breakwater North Light A line drawn from the south
2 to Marina Del Rey Light 3 ernmost extremity of Fossil Point
to the seaward extremity of
c A line drawn from Marina Whaler Island Rey Light 4 to the of the Ballona Creek 801210 EsteroMorro Bay
South Jetty CA
A line drawn from the seaward
801150 Port Husneme CA extremity of the Morro Bay East
A line drawn from Port Breakwater to the Morro Bay
Hueneme East Jetty Light 4 to West Breakwater Light
fort Hueneme West Jetty Light
801215 Monterey Harbor
801155 Channel Islands CA
Harbor CA A line drawn from Monterey
a A line drawn from Channel Harbor Light 6 to the Harbor South Jetty Light extremity of Monterey Municipal
2 to Channel Islands Harbor Wharf 2
Breakwater South Light 1
801220 Moss Landing
b A line drawn from Channel Harbor CA
Islands Harbor Breakwater North A line drawn from the seaward
Light to Channel Islands Harbor extremity of the pier located 03
North Jetty Light 5 mile south of Moss Landing
Harbor Entrance to the seaward
801160 Ventura Marina extremity of the Moss Landing
CA Harbor North Breakwater
A line drawn from South Jetty Light 6 to 801225 Santa Cruz Marina Breakwater CA
South Light 3 thence to Ventura A line drawn from the North Jetty Light 7 extremity of the Santa Cruz
Harbor East Breakwater to Santa
801165 Santa Barbara Cruz Harbor West CA Light thence to Santa Cruz
A line drawn from Santa Harbor Light 4 to Santa
801230 Pillar Point Harbor easternmost extremity of Whaler
CA Island
A line drawn from Pillar Point
Harbor Light 6 to Pillar Point THIRTEENTH Entrance Light
801305 Chetco River OR
801250 San Francisco A line drawn across the sea ward
Harbor CA extremities of the Chetco River
A straight line drawn from Entrance Bonita Light through Mile
Rocks Light to the shore CGD 81017 46 FR 28154
May 26 19811
801255 Bodega and
Tomales Bay CA 801310 Rogue River OR
a An eastwest line drawn A line drawn across the sea ward
from Sand Point to Avails Beach extremities of the Rogue River
Entrance Jetties
b A line drawn from the sea
ward extremity of Bodega Harbor 801315 Coquille River OR
North Breakwater to Bodega A line drawn across the sea
Harbor Entrance Light 1 CGD ward extremities of the 46 FR 28154 May 26 River Entrance 801320
Coos Bay OR
8012B0 Albion River CA A line drawn across the sea
A line drawn on an axis of 030 ward extremities of the Coos Bay
true through Albion River Light 1 Entrance Albion Cove
801325 Umpqua River OR
801265 Noyo River CA A line drawn across the sea
A line drawn from Noyo River ward extremities of the Daybeacon 4 to Noyo Entrance Entrance Light 5
801330 Siuslaw River OR
801270 A line drawn across the sea ward
Bay CA extremities of the Siuslaw River
A line drawn from Humboldt Entrance Jetties
Bay Entrance Light 4 to Hum
boldt Bay Entrance Light 3 801335 Alsea Bay OR
A line drawn from the seaward
801275 Crescent City shoreline on the north of the
Harbor CA Alsea Bay Entrance 165 true
A line drawn from Crescent across the channel Entrance Light to the south
801340 Yaquina Bay OR ward extremities above water
A line drawn across the sea ward of the Grays Harbor of Yaquina Bay Jetties
801380 Quillayute River
801345 Depoe Bay OR WA
A line drawn across the Depoe A line drawn from the seaward
Bay Channel entrance parallel extremity of the Quillayute River
with the general trend of the Entrance East Jetty to the over
highwater shoreline head power cable tower charted
on James Island thence a
801350 Netarts Bay OR A straight line through drawn from the northern most River Entrance Light 3 to the
extremity of the shore on the side of Netarts Bay north to
the opposite shoreline 801385 Strait of Juan de
Fuca
801355 Tillamook Bay OR The 72 COLREGS shall apply
A line drawn across the sea on all waters of the Strait of Juan
ward extremities of the Tillamook de Fuca
Bay Entrance Jetties
801390 Haro Strait and
801360 Nehalem River Strait of Georgia
OR The 72 COLREGS shall apply
A line drawn approximately on all waters of the Haro with the general trend of and the Strait of Georgia
the highwater shoreline across
the Nehalem River Entrance 801395 Puget Sound and
Adjacent Waters
801365 Columbia River The 72 COLREGS shall ORWA on all waters of Puget Sound and
A line drawn from the seaward adjacent waters including of the Columbia River Union Lake Washington Hood
North Jetty above water 155 Canal and all tributaries CGD
true to the seaward extremity of 81087 46 FR 61456 Dec 17
the Columbia River South Jetty 1981
above water
PACIFIC ISLANDS
801370 Willapa Bay WA A
line drawn from Willapa Bay FOURTEENTH 1698 true to the western
most tripod charted 16 miles 801410 Hawaiian Island
south of Leadbetter Point Exemption from General Rule
Except as provided elsewhere in
801375 Grays Harbor WA this part for Mamala Bay and
A line drawn across the sea Kaneohe Bay on Oahu Port
Allen and Nawiliwili Bay on Light to the seaward Kahului Harbor on Maul of the Kawaihae South
and Kawailae and Hilo Harbors Hawaii the 72 COLREGS
shall apply on all other bays har 801480 Hilo Harbor
bors and lagoons of the Hawaii HI
Hawaiian Island including A line drawn from the extremity of the Hilo Breakwater
265 true as an extension of the
801420 Mamala Bay Oahu seaward side of the to the shoreline 02 nautical mile
A line drawn from Barbers north of Alealea Point
Point Light to Diamond Head
Light 801490 Apra Harbor US
Territory of Guam
801430 Kaneohe Bay A line drawn from the HI most extremity of Orote Island to
A straight line drawn from the westernmost extremity of
Pyramid Rock Light across Glass Bay through the center
of Mokolii Island to the shoreline 801495 US Pacific Island
Possessions
801440 Port Allen Kaual The 72 COLREGS shall apply
HI on the bays harbors lagoons
A line drawn from Hanapepe and waters surrounding the US
Light to Hanapepe Bay Pacific Island Possessions of
Breakwater Light American Samoa Baker
CGD 81Of7 46 FR 28154 Canton Howland Jarvis
May 26 1981 Johnson Palmyra Swains and
Wake Island The Trust Territory
801450 Nawiliwili Harbor of the Pacific Islands is not a
Kauai HI US possession and therefore
A line drawn from Nawiliwili Part 82 does not apply Harbor Breakwater Light to CGD 81017 46 FR 28154
Kukii Point Light May 26 1981
801460 Kahului Harbor ALASKA
Maul HI
A line drawn from Kahului SEVENTEENTH Entrance Light to Kahului 801705 Alaska
Harbor Entrance West The 72 COLREGS shall Light on all the sounds bays harbors
and inlets of Alaska
801470 Kawalhae Harbor CGD 81017 46 FR HI May 26 1981
A line drawn from Kawaihae
PENALTY PROVISIONS
VIOLATIONS OF INTERNATIONAL NAVIGATION RULES AND
REGULATIONS 33 USC 1608
Sec 9a Whoever operates a vessel subject to the provisions
of this Act in violation of this Act or of any regulation to section 8 shall be liable to a civil penalty of not more
than 5000 for each such violation
b Every vessel subject to the provisions of this Act other than a
public vessel being used for noncommercial purposes which is oper
ated in violation of this Act or of any regulation promulgated pursuant
to section 8 shall be liable to a civil penalty of not more than 5000
for each such violation for which penalty the vessel may be seized
and proceeded against in the district court of the United States of any
district within which such vessel may be found
c The Secretary of the department in which the Coast Guard is
operating may assess any civil penalty authorized by this section No
such penalty may be assessed until the person charged or the owner
of the vessel charged as appropriate shall have been given notice
of the violation involved and an opportunity for a hearing For good
cause shown the Secretary may remit mitigate or compromise any
penalty assessed Upon the failure of the person charged or the
owner of the vessel charged to pay an assessed penalty as it may
have been mitigated or compromised the Secretary may request the
Attorney General to commencean action in the appropriate of the United States for collection of the penalty as regard to the amount involved
together with such other relief
as may be appropriate July 27 1977 9 91 Stat 310
VIOLATIONS OF INLAND NAVIGATION RULES AND
REGULATIONS
33 USC 2072
Sec 4a Whoever operates a vessel in violation of this Act or
of any regulation issued thereunder or in violation of a certificate compliance issued under Rule 1 is liable to a civil penalty
of not more than 5000 for each violation
b Every vessel subject to this Act other than a public vessel being
used for noncommercial purposes that is operated in violation of this
Act or of any regulation issued thereunder or in violation of a certifi
cate of alternative compliance issued under Rule 1 is liable to a civil
penalty of not more than 5000 for each violation for which penalty
the vessel may be seized and proceeded against in the district court
of the United States of any district within which the vessel may be
found
c The Secretary may assess any civil penalty authorized by this
section No such penalty may be assessed until the person charged
or the owner of the vessel charged as appropriate shall have been
given notice of the violation involved and an opportunity for a hear
ing For good cause shown the Secretary may remit mitigate or
compromise any penalty assessed Upon the failure of the or the owner of the vessel charged to pay an as it may have been mitigated or compromised
Secretary may request the Attorney General to commence an action
in the appropriate district court of the United States for collection of
the penalty as assessed without regard to the amount with such other relief as may be appropriate
d The Secretary of the Treasury shall withhold or revoke at the
request of the Secretary the clearance required by section 4197 of
the Revised Statutes of the United States 46 USC 91 of any ves
sel the owner or operator of which is subject to any of the penalties
in this section Clearance may be granted in such cases upon the fil
ing of a bond or other surety satisfactory to the Secretary Dec 24
1980 4 94 Stat FOR NEGLIGENT OPERATIONS DUTIES RELATED
TO MARINE CASUALTY ASSISTANCE AND INFORMATION
DUTY TO PROVIDE ASSISTANCE AT SEA INJUNCTIONS 46
USC 23012305
EXCERPT FROM TITLE 46 OF THE UNITED STATES CODE
CHAPTER 23 OPERATIONS OF VESSELS
GENERALLY
Enacted on August 2619831
2301 Application
2302 Penalties for negligent operations
2303 Duties related to marine casualty assistance
2304 Duty to provide assistance at sea
2305 2301 Application
This chapter applies to a vessel operated on waters subject to of the United States and for a vessel owned in the on the high seas
2302 Penalties for negligent operations
a A person operating a vessel in a negligent manner the life limb or property of a person is liable to the United
States Government for a civil penalty of not more than 1000
b A person operating a vessel in a grossly negligent manner
that endangers the life limb or property of a person shall be fined
not more than 5000 imprisoned for not more than one year or
both
c For a penalty imposed under this section the vessel also is
liable in rem unless the vessel is
1 owned by a State or a political subdivision of a State 2
operated principally for governmental purposes and
3 identified clearly as a vessel of that State or 2303 Duties related to marine casualty assistance The master or individual in charge of a
vessel involved in a
marine casualty shall
1 render necessary assistance to each individual affected to
save that affected individual from danger caused by the marine
casualty so far as the master or individual in charge can do so
without serious danger to the masters or individuals vessel or to
individuals on board and
2 give the masters or individuals name and address and
of the vessel to the master or individual in charge of
any other vessel involved in the casualty to any individual
injured and to the owner of any property damaged
b An individual violating this section or a regulation this section shall be fined not more than 1000 or not more than 2 years The vessel also is
liable in rein to the
United States Government for the fine
c An individual complying with subsection a of this section and in good faith rendering assistance at the scene of a
marine casualty without objection by an individual assisted is not
liable for damages as a result of rendering assistance or for an act or
omission in providing or arranging salvage towage medical treat
ment or other assistance when the individual acts as an and prudent individual would have acted under the cir
2304 Duty to provide assistance at sea
a A master or individual in charge of a vessel shall to any individual found at sea in danger of being lost so
far as the master or individual in charge can do so without to the masters or individuals vessel or individuals on board
b A master or individual violating this section shall be fined not
more than 1000 imprisoned for not more than 2 years or both
2305 a The district courts of the United States have jurisdiction to
enjoin the negligent operation of vessels prohibited by this chapter on
the petition of the Attorney General for the United When practicable the Secretary shall
1 give notice to any person against whom an action for
injunctive relief is considered under this section an opportunity to
present that persons views and
2 except for a knowing and willful violation give the person a
reasonable opportunity to achieve compliance c The failure to give
notice and opportunity to present views under subsection b of this
section does not preclude the court from grant ing appropriate relief
ALTERNATIVE COMPLIANCE
The alternative compliance procedures for the and the Inland Rules are the same although they appear both
in the International Rules section of the Code of Federal CFR Part 81 and in the Inland Rules section 33 CFR Part 89
1 Definitions 4 Certificate of alternative compliance Contents
2 General 5 Certificate of alternative compliance Application for a certificate 6 Record of certification of vessels of
special
alternative compliance construction or purpose
1 used in this part
72 COLREGS refers to the International Regulations Collisions at Sea 1972 done at London October 20
1972 as rectified by the ProcesVerbal of December 1 1973 as
amended
Inland Rules refers to the Inland Navigation Rules contained in
the Inland Navigational Rules Act of 1980 Pub L 96591 and the
technical annexes established under that act
A vessel of special construction or purpose means a or modified to perform a special function and is thereby made relatively inflexible
Interference with the special function of the vessel occurs or use of lights shapes or the 72 Rules prevents or significantly hin
ders the operation in which the vessel is usually engaged
2 of special construction or purpose which cannot fully com ply
with the light shape and sound signal provisions of the 72 Rules without interfering with their special function may
instead meet alternative requirements The Chief of the Marine
Safety Division in each Coast Guard District Office makes this and requires that alternative compliance be as close as pos
sible with the 72 Rules These regulations set out
the procedure by which a vessel may be certified for alternative 3 Application for a Certificate of Alternative Compliance
a The owner builder operator or agent of a vessel of special or purpose who believes the vessel cannot fully comply with
the 72 Rules light shape or sound signal provi
sions without interference with its special function may apply for that alternative compliance is justified The be in writing submitted to the Chief
of the Marine of the Coast Guard District in which the vessel is being built
or operated and include the following information
1 The name address and telephone number of the applicant
2 The of the vessel by itsi Official number
ii Shipyard hull number
iii Hull number or
iv State number if the vessel does not have an official
number or hull number 3 Vessel name
and home port if known
4 A description of the vessels area of operation
5 A description of the provision for which the Certificate of
Alternative Compliance is sought including
i The 72 Rules Rule or Annex section
number for which the Certificate of Alternative Compliance is
sought
ii A description of the special function of the vessel that
would be interfered with by full compliance with the provision
of that Rule or Annex section and
iii A statement of how full compliance would interfere with
the special function of the vessel 6 A description of the that is in closest possible compliance with the applicable
72 Rules Rule or Annex section
7 A copy of the vessels plans or an accurate scale drawing
that clearly shows
i The required installation of the equipment under the 72
Rules
ii The proposed installation of the equipment for which cer
tification As being sought and
ill Any obstructions that may interfere with the equipment
when installed in
A The required location and
B The proposed location
b The Coast Guard may request from the applicant concerning the 203
4 Certificate of Alternative Compliance Contents
The Chief of the Marine Safety Division issues the Certificate Compliance to the vessel based on a determination that it
cannot comply fully with 72 Rules light shape and
sound signal provisions without interference with its special Certificate includes
a of the vessel as supplied in the application
b The provision of the 72 Rules for which authorizes alternative compliance
c A certification that the vessel is unable to comply fully with
the 72 Rules light shape and sound without interference with its special function
d A statement of why full compliance would interfere with the
special function of the vessel
e The required alternative f A statement that the required alternative installation is in the
closest possible compliance with the 72 Rules
without interfering with the special function of the vessel g The
date of issuance
h A statement that the Certificate of Alternative when the vessel ceases to be usually engaged in the
operation for which the certificate is issued
5 Certificate of Alternative Compliance The Certificate of Alternative Compliance terminates if supplied under 3a or the Certificate issued under
4 is
no longer applicable to the vessel
6 Record of certification of vessels of special construction or
purpose
a Copies of Certificates of Alternative Compliance concerning Coast Guard vessels are available at Coast Guard Headquarters Office of Navigation
Safety
and Waterway Services 2100 Second Street SW 20593
b The owner or operator of a vessel issued a Certificate shall
ensure that the vessel does not operate unless the Certificate Compliance or a certified copy of that Certificate is on
board the vessel and available for inspection by Coast Guard per 204
WATERS SPECIFIED BY THE SECRETARY
33 CFR 8925 Waters upon which Inland Rules 9a1 14d
and 15b apply
Inland Rules 9aii 14d and 15b apply on the Great Lakes the
Western Rivers and the following specified waters
a Tennessee Tombbbee River
c Back Warrior River
d Alabama River
e Coosa River
f Mobile River above the Cochrane Bddge at St Louis Point
g Flint River
h Chattahoochee River and
i The Apaiachicoia River above its confiuence with the Jackson River
33 CFR 8927 Waters upon which Inland Rule 241 apples
a Inland Rule 24i applies on the Western Rivers and the
specified waters listed in 8925 a through i
b Inland Rule 24i applies on the Gulf Intracoastal Waterway
from St Marks Florida to the Rio Grande Texas including the
Morgan CityPod Allen Alternate Route and the except that a powerdriven vessel pushing ahead or shall exhibit the lights required by Inland Rule 24c
within the following areas
1 St Andrews Bay from the Hathaway Fixed Bridge at Mid 2846 East of Harvey Locks EHL to
the DuPont Fixed Badge at Mile 2954 EHL
2 Pensacola Bay Santa Rosa Sound and Big Lagoon from the Ught o10 off of T rout Point at
Mile 1769 EHL to the Pensacola Faxed Bridge d Mile 1891 EHL
3 Mobile Bay and Bon Secour Bay from the Dauphin Island Causeway Fixed Bridge at Mile 1277
EHL to Little Point Clear at Mile 140 EHL
4 Mississippi Sound from Grand Island Waterway Ught 1 at Mile 538 EHL to Light 40 off the
West Point of Dauphin Island at Mid 1187 EHL
5 The Mississippi River d New Orleans Mississippi RiverGulf Outlet Canal and the Inner Hareor
Navigation Canal from the junction of the Harvey Canal and the Algiers Altemate Route at Mile
65 West of Harvey Locks WHL to the Michoud Canal at Mile 18 EHL
6 The Calcasieu River from the Caicasieu Lock at Mile 2386 WHL to the Emender Ufl Bridge at
Mile 2436 WHL
7 The Sabine Neches Canal from Mile 2625 WHL to Mile 2915 WHL
8 Bolivar Roads from the Bolivar Assembling Basin at Mile 346 WHL to the Galveston
Causeway Bridge at Mile 3573 WHL
9 Freeport Hareor from Surfside Beach Fixed Bddge d Mile 3938 WHL to the Bryan Beach
Pontoon Bddge at Mid 3976 WHL
10 Matagorda Ship Channel area of Matagorda Bay from Range SKY Front Light at Mile
4687 WHL to the Port O Connor Jetty at Mile 4722 WHL
11 Corpus Christi Bay from Reddish Bay Day Beacon 55 at Mile 5374 WHL when in the Gulf
Intracoastal Waterway main route or from the north end of Lydia Ann Island Mile 5311A when
in the Gulf Intracoastal Waterway Alternate Route to Corpus Christl Bay LT 76 d Mile 5437
12 Port Isabel and Brownsville Ship Channel south of the Padre Island Causeway Fixed
Bddge d Mile 6651 WHL
VESSEL Vessel Act is applicable on
navigable waters of the United States inside the boundary in 46 CFR 7 In all cases the Act applies on waters sub
ject to the Inland Rules In some instances the Act may apply all the
way out to the three mile limit depending on where the are located In no instance does the Act apply beyond the three
mile limit
Sec Sec
2601 Purpose 2606 Maintenance of failure of required
2607 of the designated frequency 2608 Exemption of 2609 List of exemptions
2610 AUTHORITY 33 USC 12011208 49 CFR 146 Sections 2604 and 2609 also issued
under Sec 4118 Pub L 101380104 Stat 523 33 USC 1203 note
SOURCE CGD 71114R 37 FR 12720 June 28 1972 unless otherwise noted
2601 Purpose
a The purpose of this part is to implement the provisions of the Vessel Act This part
1 Requires the use of the vessel 2 Provides the Coast Guards of the meaning of important terms in the
3 Prescribes the procedures for applying for an exemption from the Act and the
regulations issued under the Act and a listing of exemptions
b Nothing in this part relieves any person from the obligation of complying with the
rules of the road and the applicable pilot rules
2602 the purpose of this part and interpreting the Act
Secretary means the Secretary of the Department in which the Coast Guard Act means the Vessel Act 33 U S C is measured from end to end over
the deck excluding sheer means any vessel propelled by machinery
Towing vessel means any commercial vessel engaged in towing another vessel
astem alongside or by pushing Traffic Services VTS means a service implemented under Part 161 of this
chapter by the United States Coast Guard designed to improve the safety and efficiency of
vessel traffic and to protect the envi
ronment The VTS has the capability to interact with
marine traffic and respond to traffic situations developing in the VTS area and
Vessel Traffic Service Area or VTS Area means the
geographical area encompassing a specific VTS area of service as
described in Part 161 of this chapter This area of service may be
subdivided into sectors for the purpose of allocating to
individual Vessel Traffic Centers or to identify different operating
Note Although regulatory jurisdiction is limited to the navigable
waters of the United States certain vessels will be encouraged or
may be required as a condition of port entry to report beyond this
area to facilitate traffic management within the VTS area
Rule 1 International Regulations for Preventing Collisions at
Sea 1972
as rectified EO 11964 14 USC 2 49 CFR 146b
CGD 71114R 37 FR 12720 June 28 1972 as amended by CGD 77118a 42 FR
35784 July 11 1977 CGD 9002059 FR 36313 JULY 15 1994
2603 required
a Unless an exemption is granted under 2609 and except as
provided in paragraph a 4 of this section this part applies to
1 Every powerdriven vessel of 20 meters or over in length
while navigating
2 Every vessel of 100 gross tons and upward carrying one or
more passengers for hire while navigating
3 Every towing vessel of 26 feet or over in length while
navigating and 4 Every dredge and floating plant engaged in or
near a channel or fairway in operations likely to restric t or affect
navigation of other vessels except for an unmanned or
manned floating plant under the
control of a dredge
b Every vessel dredge or floating plant described in paragraph
a of this section must have a on board capable of
operation from its navigational bridge or in the case of a dredge
from its main control station and capable of transmitting and receiv
ing on the frequency or frequencies within the 156162 Megahertz
band using the classes of emissions designated by the Federal
Commission for the exchange of navigational infor
mation
c The required by paragraph b of this section
must be carried on board the described vessels dredges and float
ing plants upon the navigable waters of the United States
d The required by paragraph b of this section
must be capable of transmitting and receiving on VHF FM channel
22A 1571 MHz
e While transiting any of the following waters each vessel
described in paragraph a of this section also must have on board a
capable of transmitting and receiving on VHF FM
channel 67 156375 MHz
1 The lower Mississippi River from the territorial sea boundary
and within either the Southwest Pass safety fairway or the South
Pass safety fairway specified in 33 CFR 166200 to mile 2424 AHP
Above Head of Passes near Baton Rouge
2 The Mississippi RiverGulf Outlet from the territorial sea boundary
and within the Mississippi RiverGulf Outlet Safety Fairway specified in
33 CFR 166200 to that channels junction with the Inner Harbor
Navigation Canal and
3 The full length of the Inner Harbor Navigation Canal from its junction
with the Mississippi River to that canals entry to Lake Pontchartrain at
the New Seabrook vehicular bridge
f In addition to the required by paragraph b of this
section each vessel described in paragraph a of this section any waters within a Vessel Traffic Service Area must have on
board a capable of transmitting and receiving on the frequency in Table 2603f VTS Call Signs and Monitoring Areas Located on pages 210A and 210B
Note A single VHFFM radio capable of scanning or often referred to as dual watch capability will not meet for two radios
CGD 71114R 37 FR 12720 June 28 1972 as amended by CGD 91
046 57 FR 14485 Apr 21 1992 57FR 21740 May 22 1992 CGD 90020
59 FR 36316 July 15 1994
2604 Use of the designated frequency
a No person may use the frequency designated by the Commission under sections of the Act 33 USC 1207a
to transmit any information other than information necessary for the of vessels or necessary tests
b Each person who is required to maintain a listening watch under
section 5 of the Act shall when necessary transmit and confirm on frequency the intentions of his vessel and any other for the safe navigation of
vessels
c Nothing in these regulations may be construed as prohibiting the use
of the designated frequency to communicate with shore stations to obtain or
furnish information necessary for the safe navigation of vessels
d On the navigable waters of the United States channel 13 15665
MHz is the designated frequency required to be monitored in 2605a except that in the area prescribed in 2603e channel 67
156375 MHz is an additional frequency
e On those navigable waters of the United States within a VTS area
the designated VTS frequency is the designated frequency required to be
monitored in accordance with 2605
Note As stated in 47 CFR 80148b a VHF watch on Channel is not required on vessels subject to the Vessel Act and participating in a Vessel Traffic
Service
VTS system when the watch is maintained on both the vessel frequency and a designated VTS 71114R 37 FR 12720 June 28 1972 as amended by CGD 83036
48 PR 30107 June 30 1983 CGD 91046 57 FR 14486 Apr 21 1992 57
FR 21741 May 22 1992 CGD 90020 59 FR 36316 July 15 1994
26 05 Use of Section 5 of the Act states that
a The required by this Act is for the exclusive
use of the master or person in charge of the vessel or the by the master or person in charge to pilot or direct the
movement of the vessel who shall maintain a listening watch on frequency Nothing contained herein shall be precluding the use of portable equipment
to satisfy
the requirements of this Act
2606 Maintenance of tenure of
Section 6 of the Act States
a Whenever capability is required by this Act a
vessels equipment shall be maintained in condition If the equipment carried aboard a
vessel ceases to operate the master shall exercise due diligence to
restore it or cause it to be restored to effective operating condition at
the earliest practicable time The failure of a vessels radiotele
shall not in itself constitute a violation of this Act nor
shall it obligate the master of any vessel to moor or anchor his
vessel however the loss of capability shall be in the navigation of the vessel
2607 No person may use the services of and no person may serve as
a person required to maintain a listening watch under section 5 of the
Act 33 USC 1204 unless the person can communicate in the
English 90020 59 FR 36316 July 15 1994
2608 Exemption procedures
a Any person may petition for an exemption from any provision
of the Act or this part
b Each petition must be submitted in writing to US Coast
Guard GNSR 2100 Second Street SW Washington DC 20593
0001 and must state
1 The provisions of the Act or this part from which an
exemption is requested and
2 The reasons why marine navigation will not be adversely
affected if the exemption is granted and if the exemption
relates to a local communication system how that system
would fully comply with the intent of the concept of the Act
but would not conform in detail if the exemption is 71114R 37 FR 12720 June 28 1972 as amended by CGD
73256 39 FR 9176 Mar 8 1974 CGD 8805253 FR 25119 July
1 1988
2609 Ust of Exemptions
a All vessels navigating on those waters governed by rules for the Great Lakes and their connecting and
tributary waters 33 USC 241 et seq are exempt from of the Vessel Act and
this part until May 6 1975
b Each vessel navigating on the Great Lakes as defined in the
Inland Navigation Rules Act of 1980 33 USC 2001 et seq and to
which the Vessel Act 33 applies is exempt from the requirements in 33 USC
1203 1204 and 1205 and the regulations under 2603 2604
2605 2606 and 2607 Each of these vessels and each person to
whom 33 USC 1208a applies must comply with Articles VII X XI
XII XIII XV and XVI and Technical Regulations 19 of Between the United States of America and Canada for
Promotion of Safety on the Great Lakes by Means of Radio 1973
CGD 72223R 37 FR 28633 Dec 28 1972 as amended by
CGD 74291 39 FR 44980 Dec 30 1974 CGD 74304 40
FR 19470 May 5 1975 CGD 83003 48 FR 7442 Feb 18
1983 CGD 91046 57 FR 14483 Apr 21 1992
2610 Penalties
Section 9 of the Act states
a Whoever being the master or person in charge of a to the Act fails to enforce or comply with the Act or hereunder or whoever being designated by
the master
or person in charge of a vessel subject to the Act to pilot or direct the
movement of a vessel fails to enforce or comply with the Act or hereunderis liable to a civil penalty of not more than
500 to be assessed by the Secretary
b Every vessel navigated in violation of the Act or hereunder is liable to a civil penalty of not more than
500 to be assessed by the Secretary for which the vessel may be
proceeded against in any District Court of the United States c Any penalty assessed under this section may be remitted or
mitigated by the Secretary upon such terms as he m ay deem proper
TABLE 26031 VESSEL TRAFFIC SERVICES VTS CALL SIGNS DESIGNATED FREQUENCIES AND MONITORING AREAS
1 2
VTS DESIGNATED FREQUENCY MONITORING AREA
Call Sign Channel YORK
New York Traffic 156700 MHZ Ch14 The waters of the Lower New York Bay west of a line drawn from Norton Point to Breezy Point and north
of a line
drawn from Ambrose Entrance Lighted Gong Buoy 1 to Ambrose channel Lighted Gong Buoy 9 thence to West
Bank Light and thence to Great Kills Light The waters of the Upper New York Bay south of Bridge
and 404370N Holland Tunnel Ventilator Shaft and in Newark Bay north of 403825N Arthur
Kill Railroad Bridge and south of Draw Bridge and the Kill Van Kull
156550 MHZ Ch11 The waters of Raritan Bay east of a line drawn from Great Kills Light to Point Comfort in New Jersey and south of a
line drawn from Great Kills Light to West Bank Light thence to Ambrose Channel Lighted Gong Buoy 9 and thence
to Ambrose Channel Lighted Gong Buoy 1 and west of a line drawn from Ambrose Channel Lighted Gong Buoy 1 to
the Sandy Hook Channel Entrance Buoys Lighted Gong Buoys 1 and 2
156600 MHZ Ch12 Each vessel at anchor within the above 3
HOUSTON The navigable waters north of 29N west of 9420W south of 2949N and east of 9520W
Houston Traffic The navigable waters north of a line extending due west from the southern most end of Exxon
Dock 1 294337N BAY
Berwick Traffic 156550 MHZ Ch11 The navigational waters south of 2945N west of 9110W north of 2937N and east of MARYS RIVER
Soo Control 156600 MHZ Ch12 57N De Tour Reef Light and 46
The navigable waters of the St Marys River between 3
SAN FRANCISCO
San Francisco Traffic 156600 MHZ Ch12 The waters within a 38 nautical mile radius of Mount Tamalpals 37558N 122346W
excluding the San Francisco Offshore Precautionary Area
156700 MHZ Ch14 The waters of the San Francisco Offshore Precautionary Area eastward to San Francisco Bay
including its tributaries extending to the pops of Stockton Sacramento and Redwood City
TABLE 26031 VESSEL TRAFFIC SERVICES VTS CALL SIGNS DESIGNATED FREQUENCIES AND MONITORING AREAS Cont
PUGET SOUND
Seattle Traffic 156700 MHZ Ch14
The navigable waters of the Puget Sound Hood Canal and adjacent waters south of a line point connecting
Marrowstone Point and Lagoon Point in Admiralty Inlet and South of a line drawn due east from the
southernmost tip of Possession Point on Whidbey Island to the shoreline
156250 MHZ Ch5A The navigable waters of the Strait of Juan de Fuca east of 12440W excluding the waters in the central
portion of the Strait of Juan de Fuca north and east of Race Rocks the navi
gable waters of the Strait of
Georgia east of 12252W the San Juan Rand Archipelago Rosario Strait Bellingham Bay Admiralty
Inlet north of a line connecting Mamowstone Point and Lagoon Point and all waters east of dbey Is and
north of a line drawn due east from the southernmost tip of Possession Point on Whidbey and to the
shoreline
Torino Traffic 156725 MHZ Ch74 The waters west of 12440W within 50 nautical miles of the coast of Vancouver Island Including the
waters northof 48N and east of 127W
Vancouver Traffic 156550 MHZ Ch11 The navigable water of the Strait of Georgia west of 12252W the navigable waters of the central Strait of
Juan de Fuca north and east of Race Rocks including the Gulf Island Archipelago Boundary Pass and
Haro 7
PRINCE WILLIAM SOUND
Valdez Traffic 156650 MHZ Ch13 The navigable waters south of 6105Naste of 14720W north 60N and west of 14630W all
navigable waters in Port Traffic 156650 MHZ Ch13 The navigable waters of the Ohio River between McAlpine Locks mile 606 and
Twelve Mile Island mile
593 only when the McAlpine upper pool guage is at approximately 130 feet or 1 VTS regulations are denoted in 33 DFR Plan 161A1 geography
coordinates latitude and longitude are expressed in North American Datum of 1383 NAD 83
NOTES
2 In the event of a communication failure either by the vessel traffic center or the vessel or radio congestion on a designated VTS frequency may
be established on an alternate VTS frequency The navigational
frequency 145650MHZ Ch13 is monitored in each
VTS area and it may be used as an alternate frequency however only to the extent that doing so provides a level of safety beyond that provided by
other means
3 Designated frequency monitoring is required within US navigable waters In areas which are outside the US navigable waters designated frequency
monitoring is voluntary However prospective VTS Users are
encouraged to monitor the designated frequency
4 A Cooperative Vessel Traffic Service was established by the United States and Canada within
adjoining waters The appropriate vessel traffic center administers the rules issued by both nations however it will enforce only its own set of rules
within its 5 Seame Traffic may direct a vessel to monitor the other primary VTS frequency 156250MHZ or 145700MHZ Ch5a or 14 depending on
traffic density weather conditions or other safety factors rather than strictly adhere no to the designated
frequency required for each monitoring area as defined above This does not require a vessel
o tmonitor both primary frequencies
6 A portion of Tofino Sectors monitoring area extends beyond the defined CVTS area Designated frequency monitoring is voluntary in these portions
outside the VTS jurisdiction however prospective VTS users are encouraged to monitor the
designated frequency
7 The navigational frequency 145650MHZ Ch13 is used in these VTSs because the level of transmissions does not warrant a designated VTS frequency
The listening watch required by
05526
of this chapter is
not limited to the monitoring area
LEGAL CITATIONS
72 Navigational Rules Public Law 9575
Act of 1977 1 Star 311
33 USC Demarcation Lines CFR 80
72 COLREGS Implementing Rules CFR 81
72 COLREGS Rules CFR 82
Amendments to 72 COLREGS effective FR 28634
June 1 1983
INLAND RULES
Inland Navigational Rules Act of 1980 Public Law 96591
Stat 3415
33 USC 20012038
Annex I Positioning and Technical CFR 84
Details of Lights and Shapes
Annex I1 Additional Signals for Fishing CFR 85
in Close Proximity
Annex II1 Technical Details of Sound CFR 86
Signal Appliances
Annex IV Distress Signals CFR 87
Annex V Pilot Rules CFR 88
Inland Navigation Rules Implementing CFR 89
Rules
Inland Navigation Rules CFR 90
Rules
VESSEL Vessel Law 9263
Act 85 Stat 164
33 USC 12011208
Vessel CFR 26
Regulations Coast Guard regulations
Stations Provided for 47 CFR Compliance With the Vessel Bridgeto
Bridge Act Fe deral Corn
Commission regulations
Other FCC regulations pertaining to vessel
are contained in various
sections of 47 CFR 81 and 47 CFR 83
Boundary Lines 46 CFR 7
CONVERSION of Metric to US Units
US Customary
Imperial Measure
Metric Measure Meters ft
500 M ft
200 M ft
150 M ft
100 M ft
75 M 2461 ft
60 M 1968 ft
50 M ft
25 M 820 ft
20 M 656 ft
394 ft
10M 328 ft
262 ft
230 ft
5 M 164 ft
45M 148 ft
40 M 131 ft
35 M 115 ft
25 M 82 ft
20 M 66 ft
15 M 49 ft
1 M 33 ft
9 M in
6M in
5 M in
300 Millimeters mm in
200 mm 79 in

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The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.