StacksVerified U.S. regulatory reference

33 CFR §147.829

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Description. The Matterhorn Tension Leg Platform A (Matterhorn TLP), Mississippi Canyon 243 (MC 243), located at position 28°44′32″ N, 88°39′32″ 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 [NAD 83].
  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.