Safety Zone; Navy Underwater Detonation (UNDET) Exercise, Apra Outer Harbor, GU

The Coast Guard is establishing a temporary safety zone for navigable waters within Apra Outer Harbor, Guam. The safety zone will encompass a U.S. Navy underwater detonation (UNDET) exercise. The Coast Guard believes this safety zone regulation is necessary to protect the public and exercise participants within the affected area from possible safety hazards associated with the exercise. This safety zone will impact a small designated area of navigable waters in Apra Harbor for 8 hours or less. With the exception of exercise participants, entry of vessels or persons into the zone is prohibited unless specifically authorized by the Captain of the Port Guam.