Sens. Tom Carper, D-Delaware, and Tom Udall, D-New Mexico, issued a statement Dec. 4 after the Environmental Protection Agency Office of the Inspector General agreed to expand the scope of its project regarding the repeal of emission requirements for glider vehicles, glider engines and glider kits in response to the senators’ request.

“We have reason to believe EPA’s decision to exempt manufacturers of the dirtiest trucks on the road from the Clean Air Act’s public health protections disregarded the health and economic effects and violated requirements of the rulemaking process,” said the lawmakers. “We have questions that we want answers to regarding industry’s involvement and legal, procedural and technical irregularities in the proposal. We’re glad the office of the inspector general has agreed to get to the bottom of this and hope to receive its findings in a timely manner.”

Specifically, Carper and Udall asked EPA OIG to broaden the current audit to include investigations into the discredited, industry-funded study former EPA Administrator Scott Pruitt used to support his decision to deregulate glider vehicles; the apparent decision to rush signature and publication of the likely illegal proposal without EPA having reviewed likely health effects associated with deregulating the rule; last minute changes to the proposed rule purposefully designed to avoid legally required health and economic analyses; and the promise former EPA Chief Pruitt made on his last day to the glider industry that it would not be required to comply with current glider rules. The Dec. 3 announcement covered portions of the senators’ request.

In March, Carper and Udall raised concerns over EPA’s decision to repeal air emissions standards for high-polluting glider trucks.

A copy of the senators' request for an investigation can be found at bit.ly/2KS0Trm.