This page is an unofficial merger of the International Regulations for Preventing Collisions at Sea (COLREGS) and the Inland Navigation Rules. Merged differences are shown in either side-by-side columns (i.e. Rule 34(c) below); in side-by-side text separated by a vertical line, e.g. (d | e), Section | Subpart, where the left-side denotes the COLREGS and the right-side the Inland Navigation Rules; in italic text for text unique to the Inland Rules; or, in square bracketed text for text unique to the COLREGS , e.g. Rule 19(c)-Every vessel shall have due regard to...when complying with [the] Rules [of Section I of this Part | 4 through 10]. Immaterial differences are not noted, such as 'one' vice '1'.

Rule 34 - Maneuvering and Warning Signals
International Inland
(c)When in sight of another in a narrow channel or fairway:

(i) a vessel intending to overtake another shall in compliance with Rule 9(e)(i) 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..."
(c) When in sight of another in a narrow channel or fairway:

(i) a power-driven 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..."


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