You can have a veteran designation printed on your Pennsylvania driver’s license or ID card as proof of military service. There is no fee for the designation itself, though you still pay the normal initial issue, renewal or duplicate card fee, and once it is added it appears automatically at every renewal.
Apply online through the PennDOT driver’s license and photo ID page, or mail a completed non-commercial driver’s license change, correction or replacement application to the Bureau of Driver Licensing, P.O. Box 68272, Harrisburg PA 17106-8272.
Proof that you served in the U.S. Armed Forces and received a discharge other than dishonorable, usually your DD214.