Waits at California border crossings were no longer than usual Thursday, the first day of stricter rules for entering the United States.
Drivers waited about an hour at 6 a.m. to cross through the San Ysidro port from Tijuana. Pedestrians were delayed about 10 minutes, according to U.S. Customs and Border Protection.
"It's been great -- a nonevent," said Gurdit Dhillon, the agency's field operations director in San Diego.
Thursday was the first day that U.S. and Canadian citizens 19 years and older had to show documents proving citizenship. Passports can be used, as can "trusted traveler" cards that have been issued to frequent crossers.