A MODU must report a collision with an aid to navigation maintained by the Coast Guard to which office?

Correct Answer: Option C — Nearest Officer in Charge, Marine Inspection

33 CFR 66.01-5 requires that any collision with an aid to navigation must be reported immediately to the nearest Officer in Charge, Marine Inspection (OCMI). This ensures the Coast Guard can assess damage to the aid and issue a Notice to Mariners to warn other vessels of the hazard.