StacksVerified U.S. regulatory reference

33 CFR §147.839

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Description. The Mad Dog Truss Spar system is in the deepwater area of the Gulf of America at Green Canyon 782. The facility is located at 27°11′18.124″ N., 90°16′7.363″ 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.