The regulations in this subpart are issued under the authority of the Tuna Conventions Act of 1950 (Act). The regulations implement recommendations of the Inter-American Tropical Tuna Commission (IATTC) for the conservation and management of highly migratory fish resources in the Eastern Tropical Pacific Ocean so far as they affect vessels and persons subject to the jurisdiction of the United States. [69 FR 67277, Nov. 17, 2004]