Waters of the United States have been divided into 9 “coastal regions” for an intermediate spatial scale between a national scale and the COTPZ. Each coast is defined by a set of COTPZs.
Alaska:
- Western Alaska (ANCMS)
- Southeast Alaska (JUNMS)
- Prince William Sound (VALMS)
Caribbean:
- San Juan (SJPMS)
East:
- Baltimore (BALMS)
- Boston (BOSMS)
- Cape Fear River (CFRMS)
- Charleston (CHAMS)
- Delaware Bay (DEBMS)
- Hampton Roads (HMRMS)
- Jacksonville (JACMS)
- Long Island Sound (LISCP)
- New York (NYCCP)
- North Carolina (NCAMS)
- Northern New England (NNEMS)
- Savannah (SAVMS)
- Southeastern New England (SNEMS)
Great Lakes:
- Buffalo (BUFMS)
- Detroit (DETMS)
- Duluth (DULMS)
- Lake Michigan (LkMighgn)
- Saulte Ste. Marie (SSMMS)
Gulf of Mexico:
- Corpus Christi (CORMS)
- Houston-Galveston (HOUCP)
- Key West (KeyWest)
- Miami (MIAMS)
- Mobile (MOBMS)
- Morgan City (MORMS)
- New Orleans (NEWMS)
- Port Arthur (PATMS)
- St Petersburg (STPMS)
Guam:
- Guam (Guad)
Hawaii:
- Honolulu (HONMS)
Inland Waterways (Inland or Inland East):
- Lower Mississippi River (LOMMS)
- Ohio Valley (OHVMS)
- Pittsburgh (PITMS)
- Upper Mississippi River (UPMMS)
West:
- Columbia River (PORMS)
- Los Angeles-Long Beach (LOSMS)
- Puget Sound (SEAMS)
- San Diego (SDCMS)
- San Francisco Bay (SFCMS)