NMFS issues this emergency action, a final temporary rule to revise the Atlantic migratory group king mackerel (Atlantic king mackerel) commercial trip limit within the Atlantic southern zone from October 1, 2019, through February 29, 2020, as requested by the South Atlantic Fishery Management Council (Council). The purpose of this final temporary rule is to increase the commercial trip limit to allow for a significant economic opportunity that otherwise would be forgone and relieve an economic burden within the Atlantic king mackerel commercial sector without increasing the risk to the stock.