NMFS approves and implements through regulations measures included in Amendment 20 to the Atlantic Mackerel, Squid, and Butterfish Fishery Management Plan, as adopted by the Mid-Atlantic Fishery Management Council. This action is necessary to prevent the reactivation of latent effort in the longfin squid fishery, preserve economic opportunities for more recently active participants in the longfin squid fishery, avoid overharvest during Trimester II (May- August) of the longfin squid fishery, and reduce potential negative impacts on inshore spawning longfin squid aggregations and squid egg masses. This action is intended to promote the sustainable utilization and conservation of the squid and butterfish resources, while promoting the sustained participation of fishing communities and minimizing adverse economic impacts on such communities.