Every applicant must come in person. STEP 1: Complete and Print Form.Please visit the passport section at travel.state. 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. Fill out an application for passport, Form DS-11. Please complete the form legibly in BLACK ink, but do not sign the form. DS-11: Application for U.S. Passport. Here are some tips from a Passport Acceptance Agent on how to fill out the DS-11 application, which is the basic passport form.