33 CFR §147.859

1. (a)Description. The Gulfstar 1 Spar is in the deepwater area of the Gulf of America at Mississippi Canyon Block 724. The facility is located at 28°14′05.904″ N, 88°59′43.306″ W, and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.
2. (b)Regulation. No vessel may enter or remain in this safety zone except the following:
   1. (1)An attending vessel;
   2. (2)A vessel under 100 feet in length overall not engaged in towing; or
   3. (3)A vessel authorized by the Commander, USCG Heartland District or a designated representative.