The person in charge of a MODU shall insure that the fuel tank of each motor propelled lifeboat is emptied, and the fuel is changed at least once every __________.

Correct Answer: Option C — 12 months

To ensure reliability during emergencies, 46 CFR 109.213 requires that fuel in motor-propelled lifeboats be emptied and replaced at least annually. This prevents fuel degradation, gumming, or moisture accumulation, which could otherwise cause engine failure when the lifeboat is needed for an immediate abandonment.