NMFS issues this final rule to implement management measures contained in Framework Adjustment 1 to the Atlantic Herring Fishery Management Plan (FMP). This final rule modifies the annual specification of herring quota for Management Area 1A by establishing two quota periods. The intent of this final rule is to cap the landings of herring from Area 1A during the winter/spring (January through May) season so that more annual quota will be available to vessels fishing during the summer/fall (June through December) peak demand season.