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2014. SeaPlan. The Regulated, Safety and Security Zones map layer identifies areas in which vessel access is either limited or restricted, or within which special... Northeast Ocean Data.
2004. United States. National Ocean Service, United States. National Oceanic and Atmospheric Administration, and United States. Department of Commerce. This polygon shapefile represents the boundary of the Stellwagen Bank National Marine Sanctuary in Massachusetts. National Marine Sanctuary means a... United States. National Ocean Service.