- 16. A continuous sounding
- (Rule 37 (Distress signals))
- 17. A gun or other explosive signal
- (Rule 37 (Distress signals))
- 18. Visibility of lights in inconspicuous, partly submerged vessels or objects being towed
- (Rule 22 (Visibility of lights))
- 19. Visibility of lights in vessels under 12 m
- (Rule 22 (Visibility of lights))
- 20. Visibility of lights in vessels over 12 m and under 20 m
- (Rule 22 (Visibility of lights))
- 21. Visibility of lights in vessels over 20 m and under 50 m
- (Rule 22 (Visibility of lights))
- 22. Visibility of lights in vessels over 50 m
- (Rule 22 (Visibility of lights))
- 23. Sound signals and supplemental light signals when operating astern propulsion
- (Rule 34 (Manoeuvring and warning signals))
- 24. Sound signals and supplemental light signals when altering course to port
- (Rule 34 (Manoeuvring and warning signals))
- 25. Sound signals and supplemental light signals when altering course to starboard
- (Rule 34 (Manoeuvring and warning signals))
- 26. The additional signals apply to a vessel engaged in fishing in close proximity to other vessels engaged in fishing
- (Rule 26 (Fishing vessels))
- 27. <span class="highlight">Annex</span> IV - Distress signals
- (Annex IV)
- 1. The following signals, used or exhibited either together or separately, 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 fog signalling apparatus; (c) rockets or shells, throwing red stars fired one at a time at short intervals; (d) a signal made by any signalling method consisting of the group . . . - - - . . . (SOS) in the Morse Code; (e) a signal sent by radiotelephony consisting of the spoken word "MAYDAY"; (f) the International Code Signal of distress indicated by N.C.; (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, etc.); (i) a rocket parachute flare or hand flare showing a red light; (j) a smoke signal giving off orange-coloured smoke; (k) slowly and repeatedly raising and lowering arms outstretched to each side; (l) a distress alert by means of digital ...
- 28. <span class="highlight">Annex</span> III - Technical details of sound signal appliances
- (Annex III)
- 1. Whistles (a) Frequencies and range of audibility The fundamental frequency of the signal shall lie within the range 70-700 Hz. The range of audibility of the signal from a whistle shall be determined by those frequencies, which may include the fundamental and/or one or more higher frequencies, which lie within the range 180-700Hz (± 1%) for a vessel of 20 m or more in length, or 180-2100 Hz(±1%) for a vessel of less than 20 m in length and which provide the sound pressure levels specified in paragraph 1 (c) below. (b) Limits of fundamental frequencies To ensure a wide variety of whistle characteristics, the fundamental frequency of a whistle shall be between the following limits: (i) 70-200 Hz, for a vessel 200 m or more in length; (ii) 130-350 Hz, for a vessel 75 m but less than 200 m in length; (iii) 250-700 Hz, for a vessel less than 75 m in length. (c) Sound signal intensity and range of audibility A whistle fitted in a vessel shall provide, in the direction ...
- 29. <span class="highlight">Annex</span> II - Additional signals for fishing vessel fishing in close proximity
- (Annex II)
- 1. General The lights mentioned herein shall, is exhibited in pursuance of Rule 26 (d), be places where they can best be seen. They shall be at least 0.9 m apart but at a lower level than lights prescribed in Rule 26 (b)(i) and (c)(i). The lights shall be visible all round the horizon at a distance of at least 1 mile but at a lesser distance then the lights prescribed by these Rules for fishing vessels. 2. Signals for trawlers (a) Vessels of 20 m or more in length when engaged in trawling, whether using demersal or pelagic gear, shall exhibit: (i) when shooting their nets: two 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 m or more in length engaged in pair trawling shall exhibit: (i) by night, a searchlight directed forwards and in the direction of the other vessel of ...
- 30. <span class="highlight">Annex</span> I - Positioning and technical details of lights and shapes
- (Annex I)
- ... the forward masthead light. (f) (i) The masthead light or lights prescribed in Rule 23 (a) 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 all-round lights prescribed by Rule 27 (b)(i) or Rule 28 below the masthead lights, they may be carried above the after masthead light(s) or vertically in between the forwards masthead light(s) and after masthead light(s), provided that in the latter case the requirement of section 3 (c) of this annex shall be complied with. (g) The sidelights of a power-driven 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 interfered with by deck lights. (h) The sidelights, if in a combined lantern and carried on a power-driven vessel of less than 20 m in length, shall be placed not less than 1 m below the masthead light. (i) When ...
- 31. Exhibiting lights in restricted visibility
- (Rule 20 (Application))
- 32. Exhibiting shapes during the daytime
- (Rule 20 (Application))
- 33. Exhibiting lights from sunset to sunrise
- (Rule 20 (Application))
- 34. Whistle
- (Rule 32 (Definitions))
- 35. COLREGs Course
- (Scenario parameters)
- Below there is a list of all COLREGs rules and annexes. You may enter any of them to get its full text from COLREGs convention and corresponding scenarios.
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