The Federal Motor Carrier Safety Administration has revoked the authority of one of 14 Mexico-based trucking companies it approved earlier to run in its long-haul cross-border program.

Sergio Tristan Maldonaldo, doing business as Tristan Transfer, had its provisional operating authority pulled on Jan. 23 after it received a conditional safety rating in December and was ordered to cease all interstate operations in the U.S. 

An FMCSA spokesperson told The Trucker newspaper FMCSA investigators discovered the company had violated hours of service regulations among several other infractions.

There have been more than 12,600 crossings into the U.S. by Mexican companies in the current program, with about 60 made by Tristan Transfer.

Nearly three years ago FMCSA announced the beginning of its long-haul cross-border program with Mexico, following a previous one that was started by the agency and later stopped by Congress and President Obama.

Both were challenged by the Owner Operator Independent Drivers Association and the Teamsters Union with the current program being upheld by a federal court, following the U.S. Supreme Court last month saying it would not consider a petition to overturn it. 

Read more about it from The Trucker.