The Teamsters Union have been against the provision saying that the Department of Transportation (DoT) is allowing jobs to be taken from US drivers as well as allowing unsafe trucks on the roads. In response the DoT is requiring that Mexican drivers and trucks follow strict standards such as background checks for drivers, testing of trucks for emissions, and electronic on-board monitoring.
There are potentially 400,000 Mexican trucks that could flow across the border, but due to the current strict standards, only very few Mexican trucks will be able to make the journey. Unless the DoT regulations are relaxed, the number of trucks crossing the border from the south will remain low.
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