PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT
The Papahanaumokuakea Marine National Monument and the Nihoa and Necker Islands Special Preservation Areas, are protected areas. See 50 CFR 404 or Chapter 2, U.S. Coast Pilot 10. 


PARTICULARLY SENSITIVE SEA AREA (PSSA)
A Particularly Sensitive Sea Area (PSSA)is an environmentally sensitive area in which and around which mariners should exercise extreme caution. See U.S. Coast Pilot volumes for information regarding this area.


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