Companies like Fitzgerald Glider Kits lobbied for this particular loophole, which allows them to ignore the 300-truck cap at least until the very end of 2019. President Donald Trump met with the CEO of the company if he was campaigning in 2016, and after that after taking office,

All these"glider trucks" use recycled engines constructed before new technologies reduced the discharge of harmful particulates that pollute the atmosphere. These trucks emit as much as 55 times the Number of pollutants as trucks using modern engines,

Former EPA secretary Scott Pruitt dealt a final blow to clean air initiatives prior to resigning Friday, implementing a loophole that will permit the creation of tens of thousands of diesel freight trucks with large emissions. The decision effectively undoes that an Obama government move that intended to cap generation of those trucks at 300 per year, beginning this year.