The process for renewing a USA B1/B2 visa is intended for people who have previously had a B1/B2 visa for travel or business. Under the interview waiver program, you might be able to extend your visa without going to an in-person interview if it is still valid or has expired within the last 48 months. In order to renew, you must fill out the DS-160 form, pay the renewal cost, and send in the necessary paperwork, including your confirmation page, passport, and prior visa. You will present these documents to a visa application center without having to appear in person for an interview if you qualify for the waiver. It is recommended to apply well in advance of any intended journey, as processing times may vary.