IG finds EPA truck emissions program effective

EPA’s inspector general (IG) is finding that the agency’s compliance program for on-road heavy-duty trucks is “effective at detecting and preventing noncompliance,” though it is flagging several opportunities for improvement, including more formal ongoing evaluation of risks to the program’s environmental goals. EPA’s transportation air quality office “demonstrated that the existing controls for its on-road HD vehicle and engine compliance program are effective and operate in an integrated manner to detect and prevent noncompliance,” the IG says in a June...