BOTH INTERNATIONAL & INLAND What equipment for fog signals is required for a vessel 15 meters in length?

Correct Answer: Option B — Whistle only

Rule 33(a) of both COLREGS and Inland Rules mandates that vessels 12 meters or more but less than 20 meters in length must carry a whistle. A bell is only required for vessels 20 meters or more in length. Therefore, a 15-meter vessel is legally required to carry only a whistle.