NMFS adjusts the differential days-at-sea (DAS) rate for common pool vessels for FY 2011 due to overages of FY 2010 catch levels. This measure will help prevent FY 2011 catch levels from being exceeded. NMFS also announces the amount of unused FY 2010 annual catch entitlement (ACE) carryover available to each sector in FY 2011, and adjusts the final number of vessels fishing in a sector in FY 2011.