rules of the road (except lights)

These Rules shall apply to all vessels upon the
high seas and in all waters connected therewith
navigable by seagoing vessel

international

These Rules apply to all vessels upon the inland
waters of the United States, and to vessels of the
United States on the Canadian waters of the great
Lakes to the extent that there is no conflict with
Canadian law

inland

delineate those waters upon which mariners shall comply
with the Inland or International Rules.

demarcation lines

who is responsible for an accident

all vessels involved in it

Every watercraft, including non-displacement craft and
seaplanes/WIG craft capable of carrying passengers and being used as a
means of transportation on water

vessel

Any vessel propelled by machinery

power driven vessel (PDV)

Any vessel propelled by sail alone

sailing vessel (SAIL)

Any vessel fishing with any fishing
apparatus that restricts maneuverability

vessel engaged in fishing (FISH)

Any vessel that through exceptional circumstance can`t comply with the rules

vessel not under command (NUC)

A vessel whose draught in relation to
depth of water is severely restricted in her ability to deviate from her course
(Int. only)

vessel constrained by draft (CBD)

A vessel who through
the nature of her work is unable to maneuver as required by the Rules and is
unable to keep out of the way of other vessels

vessel restricted in her ability to maneuver (RAM)

Not at anchor, or made fast to the shore, or aground

underway

Length overall and widest breadth

length and breadth

Each vessel can be observed visually from the other

vessels in sight of one another

Any condition in which visibility is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms or any other similar causes

restricted visibility

Any aircraft designed to maneuver on the water

seaplane

A multimodal craft which, in its main operation mode, flies in close proximity to the surface by utilizing surface-effect action

wing in ground craft (WIG)

what should every vessel have

a lookout

what factors are taken into account for safe speed

visibility, traffic density, maneuverability, background lights, wind, sea, current, draft

what should you do if you are not sure if there is a risky situation

always assume that it is

what side do you stay on in narrow channels

starboard

what vessels shall not impede the passage of a vessel that can only safely navigate
in a narrow channel

Vessels less than 20 meters in length, SAIL, FISH and crossing vessels

what signal is there when approaching a bend in a narrow channel

1 prolonged blast

two buoy systems

IALA A and IALA B

which buoy system is used in the us and what mnemonic is used

IALA B, red right returning

what does IALA stand for

international association of lighthouse authorities

number system for buoys

green odd, red even

when is it okay to enter a separation zone

in cases of emergency, to engage in fishing within a
separation zone, to cross the TSS

when is there an overtaking situation

If approaching a vessel from more than 22.5 degrees behind the beam

what side is passed on with a head on situation

go to starboard, pass port to port

which vessel has right of way on inland waters in a head on situation

the vessel travelling with the current

which vessel has to keep out of the way in a crossing situation

the one with the other on her starboard side

vessel hierarchy

Not Under Command (NUC) (Least responsible)
Restricted Ability to Maneuver (RAM)
Constrained By Draft (CBD) (International Only)
Fishing (FISH)
Sailing (SAIL)
Power Driven Vessel (PDV)
Seaplane (SEA)
Wing in Ground craft (WIG) (Most responsible)

when should a vessel have lights up

From sunset to sunrise, In conditions of restricted visibility, In all other circumstances when deemed appropriate

what color is the masthead light

white

masthead arc of visibility

225 deg, from 22.5 deg abaft the beam on both sides

what color is the port sidelight

red

arc of visibility of the port sidelight

From directly ahead (000º R) to 22.5 deg abaft PORT beam

what color is the starboard sidelight

green

arc of visibility of the starboard sidelight

From directly ahead (000º R) to 22.5 deg abaft STBD beam

what color is the stern light

white

what is the arc of visibility of the stern light

135 deg, from 22.5 deg abaft the beam circling astern to 22.5 deg abaft the beam on the other side

what color is a towing light

yellow

towing light arc of visibility

135 deg, from 22.5 deg abaft the beam circling astern to 22.5 deg abaft the beam on the other side

what color is the all around light and what is its arc of visibility

various, 360

what color and what is the arc of visibility of a flashing light

various, Flashes at regular intervals 120 flashes per minute

what color is the special flashing light

yellow

what is the arc of visibility of the special flashing light

Flashes at regular intervals 50-70 flashes per minute, placed as far forward as possible between 180 deg and 225 deg in arc, with no part exceeding 22.5 deg abaft the beam

any sound signaling appliance capable of producing the prescribed blasts

whistle

a blast of 1 second in duration

short blast

a blast of 4-6 seconds duration

prolonged blast

what device is needed on a vessel <12m

some means of making an efficient signal

what device is needed on a vessel 12-20m

whistle

what device is needed on a vessel 20<x<100

a whistle and a bell

what is needed on a vessel >100m

whistle, bell, and gong

international whistle signal for “I am altering my course to starboard.”

one short blast

international whistle signal for “I am altering my course to port.”

two short blasts

international whistle signal for “I am operating astern propulsion.”

three short blasts

according to international rules, what should a vessel do if in agreement with the other vessel

signal the same back

according to international rules, what should a vessel do if not in agreement with the other vessel

5 short blasts

inland whistle signal for “I intend to leave you on my port side.”

one short blast

inland whistle signal for “I intend to leave you on my starboard side.”

two short blasts

inland whistle signal for “I am operating astern propulsion.”

3 short blasts

what must be the range for flashing light signals as a substitute for whistle signals

5 mi (inter.), 2 mi (inland)

international whistle signal for “I intend to overtake you on your starboard side” in an overtaking situation

two prolonged and one short blast

international whistle signal for “I intend to overtake you on your port side” in an overtaking situation

two prolonged and two short blasts

international whistle signal for “I agree with your intentions” in an overtaking situation

one prolonged, one short, one prolonged, one short

what signal do you sound if you agree with the other vessel in inland waters in an overtaking situation

the same back

what is the signal for leaving a dock (inland)

one prolonged blast

what is the whistle signal in restricted visibility for a PDV underway

One prolonged blast at a 2 minute interval

what is the whistle signal in restricted visibility for a PDV not underway

Two prolonged blasts with a 2 second gap at a 2 minute interval.

what vessels shall sound one prolonged followed by two short blasts NMT 2 minute interval in restricted visibility

Not Under Command
Restricted in Ability to Maneuver (u/w or at anchor)
Sailing vessel
Fishing vessel (u/w or at anchor)
Towing or pushing

what signal should the last towed vessel make in restricted visibility

One prolonged followed by three short blasts every 2 minutes

what vessel shall sound at intervals of not more than one minute ring the bell
rapidly for about 5 seconds

anchored, if >100 add a gong for 5 seconds

what is the signal for vessels aground when in restricted visibility

same signal as a vessel at anchor, with three separate and distinct strokes on the bell before and after the rapid ringing of the bell