The Teamsters Union says it will ask a federal appeals court in San Francisco tomorrow to block the Bush administration's plan to allow Mexican trucks to carry cargo anywhere in the United States.
The union said it has been told by officials in the Transportation Department's Federal Motor Carrier Safety Administration that the first Mexican trucks will be coming across the border on Saturday.
Teamsters leaders said they planned to seek an emergency injunction from the 9th U.S. Circuit Court of Appeals in San Francisco.
Joining the Teamsters in seeking the emergency stay were the Sierra Club and Public Citizen groups.
The Bush administration said last week it would start the cross-border program once the Transportation Department's inspector general certifies safety and inspection plans.