WASHINGTON (AP) Federal regulators have stepped up the kind of testing that could have caught years of emissions-rigging by Volkswagen, but need to do more to keep automakers from duping them again on pollution, the Environmental Protection Agency’s inspector general said Tuesday.
The audit looked into how EPA regulators missed VW’s rigged diesel-emission controls that let cars pass lab testing for pollutants, but then spew many times the allowable limit of pollutants on the road.
Outside experts told EPA internal auditors there were no clear red flags that regulators should have spotted, especially given the sophistication of VW’s scheme to get around the emissions tests.
Federal prosecution led to indictment of six of the automaker’s…
