Whenever a "T-Boat" is hauled out for repairs or alterations affecting its safety you must __________.

Correct Answer: Option B — notify the cognizant OCMI

Per 46 CFR 176.700, any repairs or alterations affecting the safety of a T-Boat must be reported to the cognizant Officer in Charge, Marine Inspection (OCMI). This ensures the vessel remains in compliance with its Certificate of Inspection and that structural or safety modifications meet regulatory standards before returning to service.