Title 33 › CHAPTER 33 — PREVENTION OF POLLUTION FROM SHIPS › § 1904
The Secretary must pick who can issue MARPOL certificates for U.S. ships, and cannot give a MARPOL certificate to a ship that is registered in a country not part of MARPOL, except as allowed under section 1903(b)(1). A MARPOL certificate issued by any country that is a MARPOL party counts the same as one issued by the Secretary. Ships that need a MARPOL certificate must keep a valid one on board as the issuer requires and can be inspected while in a U.S. port. Inspections are normally only to check for the certificate unless there are clear reasons to check the ship’s condition. Other federal inspection powers are not changed. If a ship has no valid certificate or its condition does not match the certificate, the Secretary can detain it at the port until it can go to sea without an unreasonable threat to the environment or public health; the ship may be allowed to go to the nearest suitable shipyard instead. The Secretary can refuse or revoke the clearance required by 46 U.S.C. 60105. The ship’s owner can ask the Secretary to review the detention, and the Secretary must confirm, change, or lift the detention within the time set by regulation. A ship that was unreasonably detained or delayed by the Secretary is entitled to compensation for losses.
Full Legal Text
Navigation and Navigable Waters, Source: USLM XML via OLRC
Legislative History
Reference
Citation
33 U.S.C. § 1904
Title 33, Navigation and Navigable Waters
Last Updated
Sep 22, 2026
Release point: 119-110