33 U.S. Code § 3822 - Declaration
On entry into force of the Convention for the United States, a vessel of at least 24 meters in length, but less than 400 gross tons engaged on an international voyage (except fixed or floating platforms, FSUs, and FPSOs) must carry a declaration described in subsection (b) that is signed by the owner or owner’s authorized agent. That declaration shall be accompanied by appropriate documentation, such as a paint receipt or a contractor invoice, or contain an appropriate endorsement.
The declaration must contain a clear statement that the antifouling system on the vessel complies with the Convention. The Secretary may prescribe the form and other requirements of the declaration.