Form 2692 (Notice of Marine Casualty), when required, must be filed to the U.S. Coast Guard within how many days?

Correct Answer: Option A — 5 days

46 CFR 4.05-10 mandates that a written report of a marine casualty, submitted on Form CG-2692, must be filed with the nearest Coast Guard Marine Safety or Marine Inspection Office within five days of the casualty, providing a formal record of the incident for investigation purposes.