StacksVerified U.S. regulatory reference

33 CFR §147.875

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Description. The Horn Mountain Spar is in the deepwater area of the Gulf of America at Mississippi Canyon 127. The facility is located at: 28°51′57.5994″ N, 88°3′22.32″ W, (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facililty structure's outer edge is a safety zone.
  2. (b)Regulation. No vessel may enter or remain in this safety zone except for the following:
    1. (1)An attending vessel, as defined in 147.20;
    2. (2)A vessel under 100 feet in length overall not engaged in towing; or
      1. (2)A vessel authorized by the Commander, USCG Heartland District or a designated representative.
  3. (c)Requests for permission. Persons or vessels requiring authorization to enter the safety zone must request permission from the Commander, USCG Heartland District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.