A bill to impose limitations on the approval of applications by major carriers domiciled in Mexico until certain conditions are met.

Prohibits the Secretary of Transportation from approving any application of a Mexico-domiciled motor carrier to transport cargo in foreign commerce across the U.S.-Mexico border until 30 days after the President certifies to Congress that: (1) such application shall not be approved unless such carrier demonstrates awareness of, and compliance with, U.S. requirements relating to drivers and motor carriers including safety, environmental, weight, insurance, and hazardous materials; (2) a full-time enforcement program with respect to such requirements, fully implementing certain recommendations, is in place, including the ability to enforce them at the U.S.-Mexico border and in each State; and (3) the cumulative impact of the approval of such application shall not endanger the health, safety, and welfare of U.S. citizens. Declares that the requirements of this Act shall not apply to an application with respect to operations by such carrier to provide service solely in a commercial zone along the U.S.-Mexico border.