Sanctuary Designations and Expansions

Low tide, large sandstone orbs called concretions
Bowling Ball Beach, Greater Farallones National Marine Sanctuary. Photo Credit: Matt McIntosh/NOAA

Sanctuary designations create a new sanctuary and follow specific requirements in the National Marine Sanctuaries Act. Sanctuary expansions follow those same procedures to add area to an existing sanctuary.

Channel Islands National Marine Sanctuary (CINMS)

Cordell Bank National Marine Sanctuary (CBNMS)

Florida Keys National Marine Sanctuary (FKNMS)

Flower Garden Banks National Marine Sanctuary (FGBNMS)

Greater Farallones National Marine Sanctuary (GFNMS)

Gray's Reef National Marine Sanctuary (GRNMS)

Hawaiian Islands Humpback National Marine Sanctuary (HIHNMS)

Monitor National Marine Sanctuary (MNMS)

Monterey Bay National Marine Sanctuary (MBNMS)

National Marine Sanctuary of American Samoa (NMSAS)

Olympic Coast National Marine Sanctuary (OCNMS)

Papahānaumokuakea Marine National Monument (PMNM)

Stellwagen Bank National Marine Sanctuary (SBNMS)

Thunder Bay National Marine Sanctuary (TBNMS)