The Assistant Administrator for Fisheries, National Oceanic and Atmospheric Administration (NOAA AA), on behalf of the International Pacific Halibut Commission (IPHC), publishes annual management measures promulgated as regulations by the IPHC and approved by the Secretary of State governing the Pacific halibut fishery. The AA also announces modifications to the Catch Sharing Plan (CSP) for Area 2A (waters off the U.S. West Coast) and implementing regulations for 2011, and announces approval of the Area 2A CSP. These actions are intended to enhance the conservation of Pacific halibut and further the goals and objectives of the Pacific Fishery Management Council (PFMC) and the North Pacific Fishery Management Council (NPFMC) (Councils).