Pennsylvania law requires your residence address. You may use a PO Box in addition to your residence address, but not as the only address on your license.No single method will assure you acceptance, but each additional proof will help you establish the claim as a nonresident for PA. Read less. They will give you a post office box number. Post Office Box address alone is not permitted. The Pennsylvania Vehicle Code requires actual or bona fide addresses on applications for title and registration. Can getting mail at a home address in PA prove that you live there? I don't know about in PA, but in GA the answer is YES for most things. The certificate must be typed. For Department Use Only.