The Environmental Protection Agency thinks it has come up with a genius idea for furthering the cause of cleaning up the air: prohibiting our ability to convert cars produced for the street into racecars.

The regulation is called "Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles—Phase 2," and would also make the sale of certain products for use on these vehicles illegal, according to SEMA. SEMA President and CEO Chris Kersting noted, "This proposed regulation represents overreaching by the agency, runs contrary to the law and defies decades of racing activity where EPA has acknowledged and allowed conversion of vehicles. Congress did not intend the original Clean Air Act to extend to vehicles modified for racing and has re-enforced that intent on more than one occasion."