Transportes Olympic, a Monterrey, Mexico-based carrier, completed a safety audit to become the first Mexican trucking company to receive Federal Motor Carrier Safety Administration permission to operate beyond the U.S. commercial border zone on Friday.

As a result, Mexico removed the remaining 50% of its tariffs against U.S.-made products, Mexico’s embassy in Washington announced. Mexico had imposed tariffs of between 5 and 25% to $2.4 billion worth of U.S. goods yearly since March 2009.