Regulations last checked for updates: Nov 22, 2024

Title 33 - Navigation and Navigable Waters last revised: Nov 21, 2024
§ 81.1 - Definitions.

As used in this part:

72 COLREGS refers to the International Regulations for Preventing Collisions at Sea, 1972, done at London, October 20, 1972, as rectified by the Proces-Verbal of December 1, 1973, as amended.

A vessel of special construction or purpose means a vessel designed or modified to perform a special function and whose arrangement is thereby made relatively inflexible.

Interference with the special function of the vessel occurs when installation or use of lights, shapes, or sound-signaling appliances under 72 COLREGS prevents or significantly hinders the operation in which the vessel is usually engaged.

[CGD 77-136, 47 FR 13799, Apr. 1, 1982]
authority: 33 U.S.C. 1607; E.O. 11964; 49 CFR 1.46
source: CGD 76-130, 42 FR 17111, Mar. 31, 1977, unless otherwise noted. Redesignated by CGD 81-017, 46 FR 28154, May 26, 1981.
cite as: 33 CFR 81.1