Section 300.20 - Purpose and scope(a) The regulations in this subpart are issued under the authority of the Tuna Conventions Act of 1950, as amended (Act), and apply to persons and vessels subject to the jurisdiction of the United States. The regulations implement recommendations and other decisions of the Inter-American Tropical Tuna Commission (IATTC) for the conservation and management of stocks of tunas and tuna-like species and other species of fish taken by vessels fishing for tunas and tuna-like species in the IATTC Convention Area. The Secretary of Commerce, in consultation with the Secretary of State and, with respect to enforcement measures, the U.S. Coast Guard, may promulgate such regulations as may be necessary to carry out the U.S. international obligations under the Convention for the Establishment of an Inter-American Tropical Tuna Commission (Convention), the Convention for the Strengthening of the Inter-American Tropical Tuna Commission Established by the 1949 Convention between the United States of America and the Republic of Costa Rica (Antigua Convention), and the Act, including recommendations and other decisions adopted by the IATTC.(b) This subpart does not apply to:(1) Any person or vessel authorized by the IATTC, the Assistant Administrator, or any state of the United States to engage in fishing for research purposes; or(2) Any person or vessel engaged in sport fishing for personal use.87 FR 40735, July 8, 2022 81 FR 50403, 8/1/2016; 82 FR 17385, 5/11/2017; 82 FR 17385, 5/11/2017; 87 FR 40735, 7/25/2022