{"data":{"id":"us/33-cfr-80.830","jurisdiction":"us","citation":"33 CFR 80.830","heading":"Mississippi Passes, LA to Point Au Fer, LA.","body":"(a) A line drawn from the seaward extremity of the Southwest Pass West Jetty located at coordinate latitude 28°54.5′ N., longitude 89°26.1′ W.; thence following the general trend of the seaward, highwater jetty and shoreline in a north, northeasterly direction to Old Tower latitude 28°58.8′ N., longitude 89°23.3′ W.; thence to westernmost point near Pass du Bois; thence to coordinate latitude 29°05.2′ N., longitude 89°24.3′ W.; thence a curved line following the general trend of the highwater shoreline to Point Au Fer Island except as otherwise described in this section.\n(b) A line drawn across the seaward extremity of the Empire Waterway (Bayou Fontanelle) entrance jetties.\n(c) An east-west line drawn from the westernmost extremity of Grand Terre Islands in the direction of 194° true to the Grand Isle Fishing Jetty Light.\n(d) A line drawn between the seaward extremity of the Belle Pass Jetties.\n(e) A line drawn from the westernmost extremity of the Timbalier Island to the easternmost extremity of Isles Dernieres.\n(f) A south-north line drawn from Caillou Bay Light 13 across Caillou Boca.\n(g) A line drawn 107° true from Caillou Bay Boat Landing Light across the entrances to Grand Bayou du Large and Bayou Grand Caillou.\n(h) A line drawn on an axis of 103° true through Taylors Bayou Entrance Light 2 across the entrances to Jack Stout Bayou, Taylors Bayou, Pelican Pass, and Bayou de West.","path":["Title 33—Navigation and Navigable Waters","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER D—INTERNATIONAL NAVIGATION RULES","PART 80—COLREGS DEMARCATION LINES"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-33.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:35Z","sha256":"4026d0611016abae9c4dfd534d002ff73dc30b8b3185bab4748c4f915a41c9f6","source_id":"us-cfr","stale":true,"prev":"us/33-cfr-80.825","next":"us/33-cfr-80.835"},"notice":"GroundRules: Original legal text. Not legal advice."}