Section 6122 - Proof of license and exception(a) General rule.--When carrying a firearm concealed on or about one's person or in a vehicle, an individual licensed to carry a firearm shall, upon lawful demand of a law enforcement officer, produce the license for inspection. Failure to produce such license either at the time of arrest or at the preliminary hearing shall create a rebuttable presumption of nonlicensure.(b) Exception.--An individual carrying a firearm on or about his person or in a vehicle and claiming an exception under section 6106(b) (relating to firearms not to be carried without a license) shall, upon lawful demand of a law enforcement officer, produce satisfactory evidence of qualification for exception.1988, Dec. 19, P.L. 1275, No. 158, § 2, effective in 180 days. Amended 1997, April 22, P.L. 73, No. 5, § 1, effective in 60 days.