Automatic visa revalidation is a process that allows someone with an expired visa to travel to Canada, Mexico, and “U.S. adjacent islands” for fewer than 30 days and receive an automatic visa revalidation upon re-entry to the United States.
The United States implements this system because the country recognizes that it takes a lot of time and effort to extend or renew a visa. The visa holder may be required to return to his home country. Automatic Visa Revalidation provides the visa holder with the same rights they would have before their visa expired.
The Automatic Visa Revalidation process is relatively complicated. Make sure you read the rules and restrictions before you attempt to revalidate your visa.