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

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

Under 46 CFR § 4.05-1, reporting is required for casualties involving death, injury, or significant property damage. A $1,500 damage amount is below the reporting threshold. Consequently, it is unnecessary to notify the Coast Guard for this minor incident, as it does not meet the criteria for a reportable casualty.