You can make an appointment to apply for a passport (and get your passport photos) at this Post Officeâ„¢ location. Application form DS-11: This form should be filled out but not signed until you submit it at the post office.Note: APPOINTMENTS REQUIRED - (703)591-0458. Use our Form Filler to fill out your form and print it. Select your passport type and processing speed. Passport application - You will need a completed, unsigned, DS-11 New Passport Application form. Complete forms using black ink only. The usual waiting time to get your passport is 4 to 6 weeks when submitting from the FAIRFAX MAIN OFFICE USPS. Top 10 Best Passport Office Near Fairfax, Virginia ; 1. Complete the annual physical AND at least 2 other activity categories completely to earn any rewards.