(b) Place of application.--An individual who is 21 years of age or older may apply to a sheriff for a license to carry a firearm concealed on or about his person or in a vehicle within this Commonwealth. If the applicant is a resident of this Commonwealth, he shall make application with the sheriff of the county in which he resides or, if a resident of a city of the first class, with the chief of police of that city.
...
(ix) A resident of another state who does not possess a current license or permit or similar document to carry a firearm issued by that state if a license is provided for by the laws of that state, as published annually in the Federal Register by the Bureau of Alcohol, Tobacco and Firearms of the Department of the Treasury under 18 U.S.C. § 921(a)(19) (relating to definitions).