Rules of the Road · Power-Driven Vessels
A power-driven vessel less than 7 meters in length whose maximum speed does not exceed 7 knots may, in lieu of the prescribed lights, show:
- ASidelights and a sternlight only
- BA single all-round white light only✓ Correct
- CAn all-round white light and sidelights
- DA flashing yellow light
Explanation
Rule 23(d)(i) permits the smallest, slowest power-driven vessels — under 7 meters and under 7 knots — to show only an all-round white light as a practical minimum. If practicable, sidelights shall also be shown.
Authority: 72 COLREGS Rule 23(d)(i)
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