Use our Form Filler to fill out your form and print it. For the best experience, use a desktop or laptop computer.Application form DS-11: This form must be filled out but not signed until you submit it at the post office. Passport Application Process at KINGS COUNTY CLERK. You can submit your US passport application at these King County District Court locations. An appointment is required. US Passport or US Passport Card 2. Please submit a copy of your U.S. passport in addition to the above ID if you are applying from a foreign country that requires a passport for travel. Step One: Confirm you meet the requirements. Step Two: Fill out your form and print it.