51 Pa. Stat. § 20122
As used in this act, the word "veteran" includes any member of the armed forces of the United States eligible to receive the Vietnam Service Medal, but does not include (1) any individual at any time during such periods or thereafter separated from such forces under other than honorable conditions; (2) any individual who has renounced his United States citizenship.
The term "legal resident of this Commonwealth" means any individual who gave Pennsylvania or any specific place in this Commonwealth as his or her place of residence or home address when entering the armed forces of the United States without regard to the place of enlistment, commission, or induction. The proof of such residence shall be either the official records of the United States, or such other evidence of bona fide residence as may be deemed sufficient by the Adjutant General of Pennsylvania.
51 P.S. § 20122