NMFS has determined that the Atlantic bluefin tuna (ABT) Harpoon category annual quota and the June/July period General category quota for 1996 will be attained by July 24, 1996. Therefore, the 1996 Harpoon category fishery will be closed effective at 11:30 p.m. on July 24, 1996, and the General category fishery for June/July will be closed effective at 11:30 p.m. on July 24, 1996. This action is being taken to prevent overharvest of these categories. NMFS also announces a transfer of 10 mt of ABT from the longline-south Incidental subcategory to the longline-north Incidental subcategory. NMFS has determined that the fisheries landing ABT under the longline-south Incidental subcategory are not likely to achieve the full 1996 allocation. This reallocation is being taken to extend the season for the longline-north Incidental subcategory, ensure additional collection of biological assessment and monitoring data, and prevent waste of ABT that might otherwise be discarded dead.