33 C.F.R. § 147.831 Holstein Truss Spar safety zone.
Title 33 - Navigation and Navigable Waters
(a) Description. Holstein, Green Canyon 645 (GC 645), located at position 27°19'17" N, 90°32'08" W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon North American Datum 1983. (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. [CGD08–03–028, 69 FR 6147, Feb. 10, 2004]
Title 33: Navigation and Navigable Waters
PART 147—SAFETY ZONES
§ 147.831 Holstein Truss Spar safety zone.