Under authority of the Western and Central Pacific Fisheries Convention Implementation Act (WCPFC Implementation Act), NMFS issues this final rule establishing requirements to safeguard fishery observers and establishing pre-trip notification procedures for observer placement. This action is necessary to satisfy the obligations of the United States under the Convention on the Conservation and Management of Highly Migratory Fish Stocks in the Western and Central Pacific Ocean (Convention), to which it is a Contracting Party.