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N.C. Department of Environment and Natural Resources

NC Department of Environment and Natural Resources
Marine Fisheries - NCDMF - COLREGS Demarcation Lines

Marine Fisheries

COLREGS lines

COLREGS Demarcation Lines

How do you know if you are fishing in Internal (Sound) or Ocean waters? The Ocean boundary is defined as water seaward of the COLREGS Demarcation Lines as indicated on National Ocean Service navigation charts. And what does that mean? Take a close look at your charts and you will see this line - the COLREGS DEMARCATION LINE - defined. If you are fishing inshore of this line then you are in internal waters. If you are fishing to the ocean side of this line then you are in ocean waters.

Want to know more about the COLREGS lines in North Carolina?
Here are the details
Designations for COLREGS Lines in N.C. Waters/Inlets
Maps of the COLREGS lines in N.C.

N.C. Division of Marine Fisheries • 3441 Arendell Street • Morehead City, NC 28557 • (252) 726-7021 or 1-800-682-2632

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