33 CFR 147.817 - Sir Douglas Morpeth Tension Leg Platform safety zone.
(a)Description. The Sir Douglas Morpeth Tension Leg Platform (Morpeth TLP), Ewing Bank Block 921A (EW 921A), is located at position 28°02′05.28″ N, 90°01′22.12″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.
(b)Regulation. No vessel may enter or remain in this safety zone except the following:
(1) An attending vessel;
(2) A vessel under 100 feet in length overall not engaged in towing; or
(3) A vessel authorized by the Commander, Eighth Coast Guard District.