If there is unsafe machinery on a mobile offshore drilling unit, who is responsible for reporting the existence of the unsafe condition to the Coast Guard?

Correct Answer: Option B — The designated person in charge

46 CFR 109.107 mandates that the person in charge must report any unsafe machinery or conditions to the Coast Guard. This regulatory requirement ensures that potential hazards are identified and addressed promptly, preventing accidents and maintaining the overall integrity and safety standards of the mobile offshore drilling unit.