Section 147.829 - Matterhorn Tension Leg Platform safety zone(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].(b)Regulation. No vessel may enter or remain in this safety zone except the following:(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.CGD08-03-017, 68 FR 59118 , Oct. 14, 2003