50 CFR § 27.42 - Firearms.
Only the following persons may possess, use, or transport firearms on national wildlife refuges in accordance with this section and applicable Federal and State law:
(b) Persons carrying unloaded firearms, that are dismantled or cased, in vehicles and boats over routes of travel designated under the provision of subchapter C.
(c) Persons authorized to use firearms for the taking of specimens of wildlife for scientific purposes.
(d) Persons authorized by special regulations or permits to possess or use firearms for the protection of property, for field trials, and other special purposes.
(e) Notwithstanding any other provision in this Chapter, persons may possess, carry, and transport concealed, loaded, and operable firearms within a national wildlife refuge in accordance with the laws of the state in which the wildlife refuge, or that portion thereof, is located, except as otherwise prohibited by applicable Federal law.