NMFS issues a final rule to exclude tagged halibut and tagged sablefish catches from deduction from fishermen's Individual Fishing Quota (IFQ) and from Western Alaska Community Development Quota (CDQ) accounts. This action is necessary to ensure that only halibut and sablefish that are tagged with an external research tag are excluded from IFQ deduction, and to extend the same exclusion to halibut and sablefish harvested under the CDQ Program. This action is intended to improve administration of the IFQ and CDQ Programs, to enhance collection of scientific data from external tags, and to further the goals and objectives of the Fishery Management Plan for Groundfish of the Bering Sea and Aleutian Islands Management Area (BSAI), the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMPs), and the halibut management program.