The U.S. Commerce Department said on Wednesday it is opening a probe into national security impacts of imports of medium-duty and heavy-duty trucks and related parts into the United States.

The department is requesting public input on an investigation to determine the effects on national security of the imports of medium- and heavy-duty trucks and medium- and heavy-duty truck parts.

The Trump administration is looking into the effect of what it deems predatory trade practices on the competitiveness of the U.S. truck industry. The post Feds launch probe of truck imports’ effect on truck prices,

The Section 232 probe targets trucks that weigh more than 10,000 pounds, which are used to haul goods across long distances.

President Donald Trump’s administration started an investigation into the need for tariffs on imports of medium- and heavy-duty trucks and parts, an expansion of his trade war that has hit hundreds of nations and sectors.