Consular officers can now waive the in-person interview requirement for people renewing a visa that has expired within the last 24 months. Previously, only those applicants whose nonimmigrant visa expired within 12 months were eligible for an interview waiver. This new policy will be in effect through December 31, 2020.
If you need to renew your visa to re-enter the U.S., check the website of the U.S. embassy or consulate where you plan to apply for your visa for detailed information on what services are currently available as well as for eligibility information and instructions on applying for a visa without an interview.
For more information: Expansion of Interview Waiver Eligibility