Maptech's U.S. Boating Charts Regions

Region 02 -- Block Island, RI to the Canadian Border
Region 03 -- New York to Nantucket and Cape May, New Jersey
Region 04 -- Chesapeake and Delaware Bays
Region 06 -- Norfolk, VA to Florida - The Intracoastal Waterway
Region 07 -- Florida East Coast and the Keys
Region 08 -- Florida West Coast and the Keys
Region 10 -- Puerto Rico and US Virgin Islands
Region 12 -- Southern California - Point Arena to Mexican Border
Region 13 -- Lake Michigan
Region 14 -- San Francisco to Cape Flattery
Region 15 -- Pacific Northwest - Puget Sound to Canadian Border
Region 17 -- Mobile, AL to Mexican Border
Region 18 -- Lower Mississippi River: New Orleans, LA to St. Louis, MO
Region 19 -- Tennessee and Cumberland Rivers and Tenn-Tom Waterway
Region 20 -- Illinois Waterway: Cairo, IL to Lake Michigan
Region 22 -- Lake Superior and Lake Huron
Region 24 -- Lake Erie (US Waters)
Region 26 -- Lake Ontario (US Waters)
Region 30 -- Southeast Alaska
Region 32 -- South Central Alaska
Region 34 -- Alaska - The Aleutians and Bristol Bay
Region 36 -- Alaska - Norton Sound to Beaufort Sea
Region 40 -- Hawaiian Islands