President Donald Trump's administration is backing off its demand for an extra layer of federal scrutiny whenever states seek even minor changes to their transportation plans, after the rescinded requirement sparked concern that some payments for roads,

The Transportation Department announced a plan to speed up air traffic controller hiring, cut recruitment time, and raise starting salaries by 30%.

The Trump administration has set its sights on high speed rail in California and congestion pricing in New York, worrying transportation experts.

Still, $3.27 billion had already been given to the states, the United States Department of Transportation (USDOT) tells PCMag, so what happens to those funds? Can the federal government take the money back, and if not, will it still go toward EV chargers?