46 U.S.C. § 14303: Tonnage Certificate

(a) After measuring a vessel under this chapter, the Secretary shall issue, on request of the owner, an International Tonnage Certificate (1969) and deliver it to the owner or master of the vessel. For a vessel to which the Convention does not apply, the Secretary shall prescribe a certificate to be issued as evidence of a vessel’s measurement under this chapter. (b) The certificate issued under this section shall be maintained as required by the Secretary.