| Rule 9. Narrow channels (a) A vessel proceeding | 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 |
| Rule 9. Narrow channels (b) A vessel of less | A vessel of less than 20 metres 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 |
| Rule 9. Narrow channels (c) A vessel engaged | A vessel engaged in fishing shall not impede the passage of any other vessel navigating within a narrow channel or fairway |
| Rule 9. Narrow channels (d) A vessel shall not | 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 such channel or fairway. The latter vessel may use the sound signal prescribed in Rule 34 d if in doubt as to the intention of the crossing vessel |
| Rule 9. Narrow Channels (e) (i) (ii) In a narrow | 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 prescribed in Rule 34 c i. The vessel to be overtaken shall, if in agreement, sound the appropriate signal prescribed in Rule 34 c ii and take steps to permit safe passing. If in doubt she may sound the signals prescribed in Rule 34 d.
(ii) This rule does not relieve the overtaking vessel of her obligation under Rule 13 |
| Rule 9. Narrow channel (f) A vessel nearing | A vessel nearing a bend or an area of a narrow channel or fairway where other vessels may be obscured by an intervening obstruction shall navigate with particular alertness and caution and shall sound the appropriate signal prescribed in Rule 34 e |
| Rule 9. Narrow channel (g) Any vessel shall | Any vessel shall, if the circumstances of the case admit, avoid anchoring in a narrow channel |
| Rule 10. Traffic separation schemes (a) This rule applies | This rule applies to traffic separation schemes adopted by the organidation and does not relieve any vessel of her obligation under any other rule |
| Rule 10. Traffic separation schemes (b) (i) - (iii) A vessel using | A vessel using a traffic separation scheme shall:
proceed in the appropriate traffic lane in the general direction of traffic flow for that lane;
so far as practicable keep clear of a traffic separation line or separation zone;
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. |
| Rule 10. Traffic separation schemes (c) A vessel shall so ... (traffic lanes) | 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 |
| Rule 10. traffic separation schemes (d) (i) (ii) A vessel shall not | (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) Notwithstanding subparagraph (d) (i), 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 |
| Rule 10. Traffic separation schemes (e) A vessel other | 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 separation line except:
(i) in cases of emergency to avoid immediate danger;
(ii) to engage in fishing within a separation zone. |
| Rule 10. Traffic separation schemes (f) a vessel navigating | A vessel navigating in areas near the terminations of traffic separation schemes shall do so with particular caution |
| Rule 10. traffic separation schemes (g) A vessel shall so... (anchoring) | A vessel shall so far as practicable avoid anchoring in a traffic separation scheme or in areas near its terminations |
| Rule 10. Traffic separation schemes (h) A vessel not using | A vessel not using a traffic separation scheme shall avoid it by as wide a margin as is practicable |
| Rule 10. Traffic separation schemes (i) A vessel engaged | A vessel engaged in fishing shall not impede the passage of any vessel following a traffic lane |
| Rule 10. Traffic separation schemes (j) A vessel of less | A vessel of less than 20 meters in length or a sailing vessel shall not impede the safe passage of a power driven vessel following a traffic lane |
| Rule 10. Traffic separation schemes (k) A vessel restricted in her ability to manoeuvre when engaged in an operation for the maintenance of safety of navigation in a traffic separation scheme | A vessel restricted in her ability to manoeuvre when engaged in an operation for the maintenance of safety of navigation in a traffic separation scheme is exempted from complying with this rule to the extent necessary to carry out the operation |
| Rule 10. Traffic separation schemes (l) A vessel restricted in her ability to manoeuvre when engaged in an operation for the laying, servicing or picking up of a submarine cable, within a traffic separation scheme | A vessel restricted in her ability to manoeuvre when engaged in an operation for the laying, servicing or picking up of a submarine cable, within a traffic separation scheme, is exempted from complying with this rule to the extent necessary to carry out the operation |
| Rule 11. Application | rules in this section apply to vessels in sight of one another |
| Rule 12. Sailing vessels (b) For the purposes of | 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 square-rigged vessel, the side opposite to that on which the largest fore-and-aft sail is carried |
| Rule 13. Overtaking (a) Notwithstanding anything contained | Notwithstanding anything contained in the Rules of Part B, Sections I and II any vessel overtaking any other shall keep out of the way of the vessel being overtaken |
| Rule 13. Overtaking (b) A vessel shall | A vessel shall be deemed to be overtaking when coming up with another vessel from a direction more than 22.5 degrees abaft her beam, that is, in such a position with reference to the vessel she is overtaking, that at night she would be able to see only the sternlight of that vessel but neither of her sidelights |
| Rule 13. Overtaking (c) When a vessel | When a vessel is in any doubt as to whether she is overtaking another, she shall assume that this is the case and act accordingly |
| Rule 13. Overtaking (d) Any subsequent alteration | 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 |
| Rule 14. Head on situation (a) When 2 pdv | When two power-driven 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 |
| Rule 14. Head on situation (b) Such a situation | 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 and/or both sidelights and by day she observes the corresponding aspect of the other vessel |
| Rule 14. Head on situation (c) When a vessel | When a vessel is in any doubt as to whether such a situation exists she shall assume that it does exist and act accordingly |
| Rule 15 Crossing situation. When 2 pdv | When two power-driven 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 |
| Rule 16. Acrion by give way vessel. Every vessel which | Every vessel which is directed to keep out of the way of another vessel shall, so far as possible, take early and substantial action to keep well clear |
| Rule 17. Action by stand on vessel (a) (i) (ii) Where one of two | (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 manoeuvre 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 |
| Rule 17. Action by stand on vessel (b) When from any | 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 give-way vessel alone, she shall take such action as will best aid to avoid collision |
| Rule 17. Action by stand on vessel (c) A pdv which | A power-driven vessel which takes action in a crossing situation in accordance with sub-paragraph (a)(ii) of this Rule to avoid collision with another power-driven vessel shall, if the circumstances of the case admit, not alter course to port for a vessel on her own port side |
| Rule 17. Action by stand on vessel (d) this rule does not | This Rule does not relieve the give-way vessel of her obligation to keep out of the way |
| Rule 19. Restricted visibility (a) This rule applies | This Rule applies to vessels not in sight of one another when navigating in or near an area of restricted visibility |
| Rule 19. Restricted visibility (b) Every vessel shall proceed | Every vessel shall proceed at a safe speed adapted to the prevailing circumstances and conditions of restricted visibility. A power-driven vessel shall have engines ready for immediate manoeuvre |
| Rule 19. Restricted visibility (c) Every vessel shall have | Every vessel shall have due regard to the prevailing circumstances and conditions of restricted visibility when complying with the rules of section I of this part |
| Rule 19. Restricted visibility (d) A vessel which detects | A vessel which detects by radar alone the presence of another vessel shall determine if a close- quarters situation is developing and/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;
(ii) an alteration of course towards a vessel abeam or abaft the beam |
| Rule 19. Restricted visibility (e) Except where it has | 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 close quarters situation with another vessel forward of her beam, shall reduce her speed to the minimum at which she can be kept on her course. She shall if necessary take all her way off and in any event navigate with extreme caution until danger of collision is over |
