33 C.F.R. § 82.3 Pushing vessel and vessel being pushed: Composite unit.
Title 33 - Navigation and Navigable Waters
Rule 24(b) of the 72 COLREGS states that when a pushing vessel and a vessel being pushed ahead are rigidly connected in a composite unit, they are regarded as a power-driven vessel and must exhibit the lights under Rule 23. A “composite unit” is interpreted to be a pushing vessel that is rigidly connected by mechanical means to a vessel being pushed so they react to sea and swell as one vessel. “Mechanical means” does not include the following: (a) Lines. (b) Hawsers. (c) Wires. (d) Chains. [CGD 76–133, 42 FR 35792, July 11, 1977. Redesignated by CGD 81–017, 46 FR 28154, May 26, 1981]
Title 33: Navigation and Navigable Waters
PART 82—72 COLREGS: INTERPRETATIVE RULES
§ 82.3 Pushing vessel and vessel being pushed: Composite unit.

