355. If a vessel moored at a U.S. terminal does not comply with Coast Guard Pollution Prevention Regulations (33 CFR), it may be detained by the __________.

The Captain of the Port (COTP) has the authority under 33 CFR to detain a vessel failing to comply with Coast Guard Pollution Prevention Regulations at a U.S. terminal. This authority stems from the COTP's responsibility to enforce port safety and marine environmental protection regulations, as defined in 33 CFR 1.01-30. State or local entities lack this specific Coast Guard detention authority.