Environmental Protection

Navistar Resolves SCR Truck Suit against EPA

Navistar International Corporation on May 3 reached an agreement with the U.S. Environmental Protection Agency in which the agency promised to hold a public workshop or hearing to address issues Navistar raised in its federal court appeal of EPA’s certification policies for SCR-equipped diesel powered trucks.

Navistar had asked the U.S. Court of Appeals in Washington, D.C. to void those polices because they had been adopted without the public process required by law, but instead following input only from the SCR engine makers. In its appeal, Navistar charged that EPA is using those policies to allow SCR- equipped diesel powered trucks to operate for extended periods without any control of NOx emissions and is certifying SCR engines as meeting NOx emission requirements when they do not.

The agreement provides that EPA will “engage in a public process to reexamine its policies, for future 2011 and later model year engines” during which it will “provide a thorough review of EPA's policies regarding operation of SCR-equipped engines.” EPA also has promised to “ensure, among other things, that SCR-equipped heavy duty diesel engines are designed to properly control emissions as required under applicable regulations.”

The agreement must be published in the Federal Register for comment before it can become final.

“We are pleased with this agreement and look forward to participating in the public process,” said Jack Allen, president of Navistar’s North American Truck Group. “We believe that with full and open public participation, EPA will develop a new approach that will result in equal enforcement of the 2010 NOx requirements for all engine makers.”

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