NMFS issues a final rule to implement Amendment 66 to the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP), and an amendment to the Pacific halibut (halibut) commercial fishery regulations for waters in and off of Alaska. Amendment 66 to the FMP and the regulatory amendment modify the Individual Fishing Quota (IFQ) Program by revising the eligibility criteria to receive halibut and sablefish IFQ and quota share (QS) by transfer to allow eligible communities in the Gulf of Alaska (GOA) to establish non-profit entities to purchase and hold QS for lease to, and use by, community residents as defined by specific elements of the proposed action. This action improves the effectiveness of the IFQ Program by providing additional opportunities for residents of fishery dependent communities and is necessary to promote the objectives of the Magnuson-Stevens Fishery Conservation and Management Act (Magnuson-Stevens Act) and the Northern Pacific Halibut Act of 1982 (Halibut Act) with respect to the IFQ fisheries.