Cyrus Western, regional administrator of the Environmental Protection Agency said the recent proposed rule to eliminate Diesel Exhaust Fluid deratements entirely will translate to $12 billion saved by American truckers. Instead of trucks and tractors lurching to a halt when DEF systems fail, under EPA’s proposal, operators would receive visible and/or audible alerts that allow them to continue operating until they can safely address the problem. Troy Lake has been one of the faces of the fight over DEF systems. Lake is a 64-year-old diesel mechanic from Wyoming who spent seven months in federal prison for deleting emissions systems on engines plagued with system failures. EPA Administrator Lee Zeldin, Region 8 Administrator Western, and U.S. Sen. Cynthia Lummis, R-Wyo., all worked to secure a pardon for Lake.