NMFS publishes this final rule to implement the 2007 management measures to reduce overfishing of the eastern tropical Pacific Ocean (ETP) tuna stocks in 2007, consistent with recommendations by the Inter-American Tropical Tuna Commission (IATTC) that have been approved by the Department of State (DOS) under the Tuna Conventions Act. The U.S. purse seine fishery for yellowfin, bigeye, and skipjack tunas in the ETP will be closed for a 6-week period beginning August 1, 2007, through September 11, 2007. The longline fishery for bigeye tuna will close when a 500 metric ton (mt) limit has been reached. These actions are taken to limit fishing mortality caused by purse seine fishing and longline fishing in the ETP and contribute to long-term conservation of the tuna stocks at levels that support healthy fisheries.