Have questions about travel visas or US passports? We have answers to common questions about US travel documents.We provide an easy to use online form to create business cover letters and invitations. The DS-160, Online Nonimmigrant Visa Application form, is for temporary travel to the United States, and for K (fiancé(e)) visas. Visa application form. You must complete and submit the DS-160 online. Clicking the "submit" button constitutes the applicant's electronic signature. You must: 1) complete the online visa application and 2) print the application form confirmation page to bring to your interview. Cn to fill out the form online.