You are moving a gas free tank barge to dry dock for repairs. The barge must have onboard a valid __________.

Correct Answer: Option C — Certificate of Inspection

A vessel must maintain a valid Certificate of Inspection (COI) to operate legally, regardless of its status or destination. While a gas-free certificate is required for hot work, the COI remains the fundamental document authorizing the vessel's movement and operation under the jurisdiction of the U.S. Coast Guard.