PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT The Papahanaumokuakea Marine National Monument and the French Frigate Shoals and Gardner Pinnacles 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 extereme caution. See U.S. Coast Pilot for information regarding this area.