U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 33Chapter IPart 80 - PART 80—COLREGS DEMARCATION LINES

GENERAL
§ 80.01 - General basis and purpose of demarcation lines.

ATLANTIC COAST
FIRST DISTRICT
§ 80.105 - Calais, ME to Cape Small, ME.
§ 80.110 - Casco Bay, ME.
§ 80.115 - Portland Head, ME to Cape Ann, MA.
§ 80.120 - Cape Ann, MA to Marblehead Neck, MA.
§ 80.125 - Marblehead Neck, MA to Nahant, MA.
§ 80.130 - Boston Harbor entrance.
§ 80.135 - Hull, MA to Race Point, MA.
§ 80.145 - Race Point, MA, to Watch Hill, RI.
§ 80.150 - Block Island, RI.
§ 80.155 - Watch Hill, RI to Montauk Point, NY.
§ 80.160 - Montauk Point, NY to Atlantic Beach, NY.
§ 80.165 - New York Harbor.

FIFTH DISTRICT
§ 80.501 - Sandy Hook, NJ to Tom's River, NJ.
§ 80.502 - Tom's River, NJ to Cape May, NJ.
§ 80.503 - Delaware Bay.
§ 80.505 - Cape Henlopen, DE to Cape Charles, VA.
§ 80.510 - Chesapeake Bay Entrance, VA.
§ 80.515 - Cape Henry, VA to Cape Hatteras, NC.
§ 80.520 - Cape Hatteras, NC to Cape Lookout, NC.
§ 80.525 - Cape Lookout, NC to Cape Fear, NC.
§ 80.530 - Cape Fear, NC to Little River Inlet, NC.

SEVENTH DISTRICT
§ 80.703 - Little River Inlet, SC to Cape Romain, SC.
§ 80.707 - Cape Romain, SC to Sullivans Island, SC.
§ 80.710 - Charleston Harbor, SC.
§ 80.712 - Morris Island, SC to Hilton Head Island, SC.
§ 80.715 - Savannah River.
§ 80.717 - Tybee Island, GA to St. Simons Island, GA.
§ 80.720 - St. Simons Island, GA to Amelia Island, FL.
§ 80.723 - Amelia Island, FL to Cape Canaveral, FL.
§ 80.727 - Cape Canaveral, FL to Miami Beach, FL.
§ 80.730 - Miami Harbor, FL.
§ 80.735 - Miami, FL to Long Key, FL.

PUERTO RICO AND VIRGIN ISLANDS
SEVENTH DISTRICT
§ 80.738 - Puerto Rico and Virgin Islands.

GULF COAST
SEVENTH DISTRICT
§ 80.740 - Long Key, FL to Cape Sable, FL.
§ 80.745 - Cape Sable, FL to Cape Romano, FL.
§ 80.748 - Cape Romano, FL to Sanibel Island, FL.
§ 80.750 - Sanibel Island, FL to St. Petersburg, FL.
§ 80.753 - St. Petersburg, FL to the Anclote, FL.
§ 80.755 - Anclote, FL to the Suncoast Keys, FL.
§ 80.757 - Suncoast Keys, FL to Horseshoe Point, FL.
§ 80.760 - Horseshoe Point, FL to Rock Island, FL.

EIGHTH DISTRICT
§ 80.805 - Rock Island, FL to Cape San Blas, FL.
§ 80.810 - Cape San Blas, FL to Perdido Bay, FL.
§ 80.815 - Mobile Bay, AL to the Chandeleur Islands, LA.
§ 80.825 - Mississippi Passes, LA.
§ 80.830 - Mississippi Passes, LA to Point Au Fer, LA.
§ 80.835 - Point Au Fer, LA to Calcasieu Pass, LA.
§ 80.840 - Sabine Pass, TX to Galveston, TX.
§ 80.845 - Galveston, TX to Freeport, TX.
§ 80.850 - Brazos River, TX to the Rio Grande, TX.

PACIFIC COAST
ELEVENTH DISTRICT
§ 80.1102 - Santa Catalina Island, CA.
§ 80.1104 - San Diego Harbor, CA.
§ 80.1106 - Mission Bay, CA.
§ 80.1108 - Oceanside Harbor, CA.
§ 80.1110 - Dana Point Harbor, CA.
§ 80.1112 - Newport Bay, CA.
§ 80.1114 - San Pedro Bay—Anaheim Bay, CA.
§ 80.1116 - Redondo Harbor, CA.
§ 80.1118 - Marina Del Rey, CA.
§ 80.1120 - Port Hueneme, CA.
§ 80.1122 - Channel Islands Harbor, CA.
§ 80.1124 - Ventura Marina, CA.
§ 80.1126 - Santa Barbara Harbor, CA.
§ 80.1130 - San Luis Obispo Bay, CA.
§ 80.1132 - Estero-Morro Bay, CA.
§ 80.1134 - Monterey Harbor, CA.
§ 80.1136 - Moss Landing Harbor, CA.
§ 80.1138 - Santa Cruz Harbor, CA.
§ 80.1140 - Pillar Point Harbor, CA.
§ 80.1142 - San Francisco Harbor, CA.
§ 80.1144 - Bodega and Tomales Bay, CA.
§ 80.1146 - Albion River, CA.
§ 80.1148 - Noyo River, CA.
§ 80.1150 - Arcata-Humboldt Bay, CA.
§ 80.1152 - Crescent City Harbor, CA.

THIRTEENTH DISTRICT
§ 80.1305 - Chetco River, OR.
§ 80.1310 - Rogue River, OR.
§ 80.1315 - Coquille River, OR.
§ 80.1320 - Coos Bay, OR.
§ 80.1325 - Umpqua River, OR.
§ 80.1330 - Siuslaw River, OR.
§ 80.1335 - Alsea Bay, OR.
§ 80.1340 - Yaquina Bay, OR.
§ 80.1345 - Depoe Bay, OR.
§ 80.1350 - Netarts Bay, OR.
§ 80.1355 - Tillamook Bay, OR.
§ 80.1360 - Nehalem River, OR.
§ 80.1365 - Columbia River Entrance, OR/WA.
§ 80.1370 - Willapa Bay, WA.
§ 80.1375 - Grays Harbor, WA.
§ 80.1380 - Quillayute River, WA.
§ 80.1385 - Strait of Juan de Fuca.
§ 80.1390 - Haro Strait and Strait of Georgia.
§ 80.1395 - Puget Sound and adjacent waters.

PACIFIC ISLANDS
FOURTEENTH DISTRICT
§ 80.1450 - Nawiliwili Harbor, Kauai, HI.
§ 80.1460 - Kahului Harbor, Maui, HI.
§ 80.1470 - Kawaihae Harbor, Hawaii, HI.
§ 80.1480 - Hilo Harbor, Hawaii, HI.
§ 80.1490 - Apra Harbor, U.S. Territory of Guam.
§ 80.1495 - U.S. Pacific Island Possessions.
§ 80.1410 - Hawaiian Island Exemption from General Rule.
§ 80.1420 - Mamala Bay, Oahu, HI.
§ 80.1430 - Kaneohe Bay, Oahu, HI.
§ 80.1440 - Port Allen, Kauai, HI.

ALASKA
SEVENTEENTH DISTRICT
§ 80.1705 - Alaska.
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