Looks to me like you can have it on the road or in your possession; just not in a visitor center or any other federal building within the park boundary.It would still be your duty in North Carolina to notify the ranger at a traffic stop/checkpoint if you are carrying concealed, that you have a concealed handgun permit and a concealed handgun. I work for a national park here in North Carolina and I am very happy with the ruling. When the comment period was open, I sent in my 2 cents and stated that from experience as a seasonal LEO, it is a very good idea. Crimes are commited on NPS land everyday but now, the bad guys know that there is a possibility ANYBODY could be carrying concealed. Not sure if we will ever be able to OC on NPS land but this new ruling at least gives us a starting point!