NMFS is adjusting the commercial aggregated large coastal shark (LCS) and hammerhead shark management group retention limit for directed shark limited access permit holders in the Atlantic region from 36 LCS other than sandbar sharks per vessel per trip to 45 LCS other than sandbar sharks per vessel per trip. This action is based on consideration of the regulatory determination criteria regarding inseason adjustments. The retention limit will remain at 45 LCS other than sandbar sharks per vessel per trip in the Atlantic region through the rest of the 2018 fishing season or until NMFS announces via a notice in the Federal Register another adjustment to the retention limit or a fishery closure. This retention limit adjustment affects anyone with a directed shark limited access permit fishing for LCS in the Atlantic region.