It doesn't matter if you call it Cape Hatteras NSRA (a NPS designation that doesn't exist) or NS. The General Authorities Act of 1974 says all NPS units regardless of designation will be managed the same, responsible to the same management policies, and will still have to obey all federal law including the NPS Organic Act, ESA, Migratory Bird Treaty Act, NEPA, etc. So, you can call it a recreation area, call it a purple planet, whatever, as long as it in the NPS system, the NPS will still have to manage for these resources just the same; they can't ignore it because the public chooses to call the Park by a different name.