Guidance if you are in the USA and you need to find out how to apply for a UK visa. Step 1: Apply on GOV.The steps you are required to take to apply for a derivative visa and the forms you are required to complete are the same as the principal visa applicant. Document checklist is to be printed from the uk visa application website. It will show up once you fill out the online applicaiton. Customers applying for a UK Visa from the USA may visit one of over 130 USCIS Application Support Centers to provide their biometric information. Fill out The Form: The first phase is to complete the application form on VisaHQ and choose the online travel permit you want (ETA or EVW). Explore career opportunities at Vanguard, where we prioritize your growth and development.