‘(c) In a State that allows the issuing authority for licenses or permits to carry concealed firearms to impose restrictions on the carrying of firearms by individual holders of such licenses or permits, a firearm shall be carried according to the same terms authorized by an unrestricted license or permit issued to a resident of the State.
‘(d) Nothing in this section shall be construed to preempt any provision of State law with respect to the issuance of licenses or permits to carry concealed firearms.’.