In which casualty case is it UNNECESSARY to notify the local Coast Guard Marine Safety Office?

Correct Answer: Option A — Your vessel strikes a pier and does $1,500 damage to the pier but no damage to the vessel.

46 CFR 4.05-1 mandates reporting marine casualties to the Coast Guard for significant property damage exceeding thresholds, material machinery failures, or serious injuries, excluding minor pier strikes under specific dollar limits without vessel damage.