NMFS issues a final rule to amend the Pacific halibut regulations for waters in and off Alaska. This action is necessary to modify the Individual Fishing Quota (IFQ) Program and the Western Alaska Community Development Quota (CDQ) Program to allow quota share holders in International Pacific Halibut Commission (IPHC) Regulatory Area (Area) 4C to fish their Area 4C IFQ or CDQ in Area 4D. This action is intended to enhance harvesting opportunities for halibut by IFQ and CDQ fishermen and is necessary to promote the objectives of the Northern Pacific Halibut Act of 1982 (Halibut Act) with respect to the IFQ and CDQ Pacific halibut fisheries, consistent with the regulations and resource management objectives of the IPHC and the North Pacific Fishery Management Council (Council).