Proof must show a Residential Street Address. Post Office Box Mailing Addresses Are Not. Acceptable.Need a private mailbox in Wayne, NJ? Get a real street address at 189 Berdan Ave when you open a mailbox at The UPS Store. Proof of residency must show applicant's address (not P.O. Box or in care of a third party) and include the applicant's name. Ask when you are filling out the paperwork at the DMV if you can use a PO box for a mailing address. Look up your home county information below and complete the associated Certificate of Residence Affidavit and Application. Select the "Submit Your Certificate of Residency" link and follow the instructions for your County. You may also mail the original to: SUNY Broome PO Box 1017 You cannot list a po box on your license or state ID. A lease or mortgage document will have the street address.