NMFS sets new 2021 and projected specifications for fishing year 2022 butterfish and Illex squid, while maintaining the current longfin squid and Atlantic mackerel specifications for 2021 and projected for 2022-2023. This action also adjusts the dealer reporting requirement and adjusts the closure threshold for the Illex squid fishery to avoid overages. This action is required to ensure that specifications for these fisheries is based on the best scientific information available. These specifications are intended to promote the sustainable utilization and conservation of the mackerel, squid, and butterfish resources. Additionally, this action reaffirms previously approved Atlantic chub mackerel specifications for 2021-2022.