SAN DIEGO — Beleaguered business owners and families separated by COVID-19 restrictions rejoiced Wednesday after the U.S. said it will reopen its land borders to nonessential travel next month, ending a 19-month freeze.

Travel across land borders from Canada and Mexico has been largely restricted to workers whose jobs are deemed essential. New rules will allow fully vaccinated foreign nationals to enter the U.S. regardless of the reason starting in early November, when a similar easing of restrictions is set for air travel. By mid-January, even essential travelers seeking to enter the U.S., such as truck drivers, will need to be fully vaccinated.

Shopping malls and retailers in U.S. border towns whose parking spaces had been filled by cars with Mexican license plates were hit hard by restrictions.

San Diego Mayor Todd Gloria said the economic impact was hard to quantify but can be seen in the sparse presence of shoppers at a high-end outlet mall on the city’s border with Tijuana, Mexico. The decision comes at a critical time ahead of the holiday shopping season.

In Del Rio, Texas, Mexican visitors account for about 65% of retail sales, said Blanca Larson, executive director of the chamber of commerce and visitors bureau in the city of 35,000 people.

“Along the border, we’re like more of one community than two different communities,” she said.

The ban has also had enormous social and cultural impact, preventing family gatherings when relatives live on different sides of the border.

The latest move follows last month’s announcement that the U.S. will end country-based travel bans for air travel and instead require vaccination for foreign nationals seeking to enter by plane.

The new rules only apply to legal entry. Those who enter illegally will still be subject to expulsion under a public health authority that allows for the swift removal of migrants.

Travelers entering the U.S. by vehicle, rail and ferry will be asked about their vaccination status as part of the standard U.S. Customs and Border Protection inspection. At officers’ discretion, travelers will have their proof of vaccination verified in a secondary screening process.

Unlike air travel, for which proof of a negative COVID-19 test is required before boarding a flight to enter the U.S., no testing will be required to enter the U.S. by land or sea, provided the travelers meet the vaccination requirement.