Cult of Sea

Maritime Knowledge base

  • Home
  • Knowledge base
    • Bridge Equipment
    • Cargo Work
    • Deck
    • General
    • Gmdss
    • Maritime Law
    • Marpol
    • MLC 2006
    • Meteorology
    • Navigation
    • Safety
    • Security
    • Ship Construction
    • Ship Handling
    • Ship Stability
    • Shippie’s Escape
    • Surveys
    • Tankers
  • Colreg’s (ROR)
    • Index (Colreg’s)
    • Part A- General
      • Rule 1 – Application
      • Rule 2 – Responsibility
      • Rule 3 – General Definitions
    • Part B- Steering and Sailing
      • Section 1 (Rule 4 -10)
        • Rule 4 – Application
        • Rule 5 – Lookout
        • Rule 6 – Safe Speed
        • Rule 7 – Risk of collision
        • Rule 8 – Action to avoid collision
        • Rule 9 – Narrow Channels
        • Rule 10 – Traffic separation schemes
      • Section 2 (Rule 11 – 18)
        • Rule 11 – Application
        • Rule 12 – Sailing vessels
        • Rule13 – Overtaking
        • Rule 14 – Head on situation
        • Rule 15 – Crossing situation
        • Rule 16 – Action by give-way vessel
        • Rule 17 – Action by stand-on vessel
        • Rule 18 – Responsibilities between vessels
      • Section 3 (Rule 19)
        • Rule 19 – Conduct of vessels in restricted visibility
    • Part C- Lights and Shapes
      • Rule 20 – Application
      • Rule 21- Definitions
      • Rule 22 – Visibility of lights
      • Rule 23 – Power-driven vessels underway
      • Rule 24 – Towing and pushing
      • Rule 25 – Sailing vessels underway and vessels under oars
      • Rule 26 – Fishing vessels
      • Rule 27 – Vessels N.U.C or R.A.M
      • Rule 28 – Vessels constrained by their draught
      • Rule 29 – Pilot vessels
      • Rule 30 – Anchored vessels and vessels aground
      • Rule 31 – Seaplanes
    • Part D- Sound and Light Signals
      • Rule 32 – Definitions
      • Rule 33 – Equipment for sound signals
      • Rule 34 – Manoeuvring and warning signals
      • Rule 35 – Sound signals in restricted visibility
      • Rule 36 : Signals to attract attention
      • Rule 37 – Distress signals
    • Part E- Exemptions (Rule 38)
      • Rule 38 – Exemptions
    • Part F – Verification of compliance with the provisions of the Convention
      • Rule 39 – Definitions
      • Rule 40 – Application
      • Rule 41 – Verification of compliance
    • Annexes
      • Annex 1 – Positioning and technical details of lights and shapes
      • ANNEX II – Additional Signals for Fishing Vessels Fishing in Close Proximity
      • ANNEX III – Technical Details of Sound Signal Appliances
      • ANNEX IV – Distress Signals
  • Glossary
  • Contact

Rule 31 – Seaplanes

Part C Lights and Shapes

Where it is impracticable for a seaplane or a WIG craft to exhibit lights and shapes of the characteristics or in the positions prescribed in the Rules of this Part she shall exhibit lights and shapes as closely similar in characteristics and position as is possible. … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, rule31, seaplanes

Rule 30 – Anchored vessels and vessels aground

Part C Lights and Shapes

(a) A vessel at anchor shall exhibit where it can best be seen:(i) in the fore part, an all-round white light or one ball; (ii) at or near the stern and at a lower level than the light prescribed in subparagraph (i), an all-round 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 lights prescribed 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.(d) A … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: aground, anchor, colregs, rule30

Rule 29 – Pilot vessels

Part C Lights and Shapes

(a) A vessel engaged on pilotage duty shall exhibit:(i) at or near the masthead, two all-round 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.         … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, pilot, pilot vessel, rule29

Rule 28 – Vessels constrained by their draught

Part C Lights and Shapes

A vessel constrained by her draught may, in addition to the Iights prescribed for power-driven vessels in Rule 23, exhibitwhere theycan best be seen three all-round red lights in a vertical line, or a cylinder. … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, constrained, draft, rule28

Rule 27 – Vessels N.U.C or R.A.M

Part C Lights and Shapes

Vessels not under command or restricted in their ability to manoeuvre (a) A vessel not under command shall exhibit:two all-round red lights in a vertical line where they can best be seen; two balls or similar shapes in a vertical line where they can best be seen; when making way through the water, in addition to the lights prescribed in this paragraph, sidelights and a sternlight.NUC Day SignalVessels not under command or restricted & Making Way through the waterVessels not under command or restricted in their ability to manoeuvre NOT Making Way through the … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, nuc, ram, rule27

Rule 26 – Fishing vessels

Part C Lights and Shapes

(a) A vessel engaged in fishing, whether underway or at anchor, shall exhibit only the lights and shapes prescribed by 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 all-round 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 … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, fishing, rule26, trawling

Rule 25 – Sailing vessels underway and vessels under oars

Part C Lights and Shapes

(a) a sailing vessel underway shall exhibit:(i) sidelights; (ii) a sternlight.(b) In a sailing vessel of less than 20 meters in length the lights prescribed 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.(c) A sailing vessel underway may, in addition to the lights prescribed in paragraph (a) of this Rule, exhibit at or near the top of the mast, where they can best be seen, two all-round lights in a vertical line, the upper being red and the lower Green, but these lights shall not be exhibited in … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, oars, rule25, sailing

Rule 24 – Towing and pushing

Part C Lights and Shapes

(a) A power driven vessel when towing shall exhibit:(i) instead of the light prescribed in Rule 23(a)(i) or (a)(ii), 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.(b) When a pushing vessel and a vessel being pushed ahead are … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, pushing, rule24, towing, Towing and pushing

Rule 23 – Power-driven vessels underway

Part C Lights and Shapes

a. A power-driven 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 metres in length shall not be obliged to exhibit such light but may do so; (iii) sidelights; (iv) a sternlight.b. An air cushion vessel when operating in the non-displacement mode shall, in addition to the lights prescribed in paragraph (a) of this Rule, exhibit an all-round flashing yellow light.c. A WIG craft only when taking off, landing and in ilight near the surface shall, in addition to the … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, lights, power driven, rule23

Rule 22 – Visibility of lights

Part C Lights and Shapes

The lights prescribed in these Rules shall have an intensity as specified in Section 8 of Annex I to these Regulations so as to be visible at the following minimum ranges:a. In vessels of 50 metres 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 all-round light, 3 miles. b. In vessels of 12 metres or more in length but less than 50 metres in length:a masthead light, 5 miles; except that where the length of the vessel is less than 20 metres, 3 miles;a sidelight, 2 … [Read more...]

By Cult of Sea Filed Under: Part C- Lights and Shapes Tagged With: colregs, lights, rule22, visibility

Next Page »
Simple Colregs COS Ad

Join Our List

Subscribe to our mailing list and get interesting stuff and updates to your email inbox.

Powered with ♥ by Cult of Sea

instagram-button

What others are reading

Surface Preparation Standards

GMDSS Batteries Requirements

Double Hull

Types of Double Hull Tankers

History of oil transportation at sea

Ship's magnetic compass

Ship’s Magnetic Compass – Dry and Wet Compass with their care, maintenance and bubble removal

Hatch Covers Cover

Hatch Covers – Function, Inspection, Tests, Precautions, Operation, Maintenance

policy

What is a Marine Policy? Basics you need to know!

Part C Lights and Shapes

Rule 20 – Application

Part C Lights and Shapes

Rule 25 – Sailing vessels underway and vessels under oars

Condition Assessment Programme CAP

Condition Assessment Programme (CAP)

Toggle Pin

Using Toggle Pin

Part D - Sound and Light Signals

Rule 35 – Sound signals in restricted visibility

Technical Aspects of GMDSS Equipments

Technical Aspects of GMDSS Equipments – Propagation, Modulation, Terrestrial Equipment & Antenna

Cargo Calculations – Tanker Work

Notice of Readiness cover

Notice of Readiness (NOR) – Definition, Contents & Requirements


About Us | Terms | Contact Us | Sitemap | Marine Glossary (BETA)

Cult of Sea®™ · Made with ❤ by a small band of sailors