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Old 07-21-2010, 11:29 AM   #1
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Navistar Working With Agencies to Close Pollution Loopholes

EPA and CARB Present Proposals to Reconsider 2010 SCR Engine Certification Requirements
Navistar Will Continue to Work with Agencies to Close Pollution Loopholes

EL MONTE, Calif. (July 20, 2010) – Navistar International Corporation (NYSE: NAV) said from a workshop today that the U.S. Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) presented preliminary proposals aimed at the compliance loopholes found in current 2010 liquid-based SCR systems.

“Navistar first identified these loopholes to the agencies and also presented our concerns at today’s workshop,” said Jack Allen, president of Navistar’s North American truck group. “We will be working with the EPA and CARB to ensure full environmental compliance.”

At today’s joint CARB and EPA workshop, Navistar’s concerns about environmental compliance were backed up by independent test findings that show new commercial vehicles that must contain liquid urea to meet federal NOx emissions standards continue to operate effectively when urea is not present. At such times, Navistar said, the vehicles throw off levels of NOx as much as 10 times higher or more than when urea is present.

The research was conducted by EnSIGHT, an independent environmental consulting firm, using two long-haul vehicles and one heavy-duty pickup, all of which use Selective Catalytic Reduction (SCR) technology that relies on liquid urea to clean up NOx emissions after they leave the engine.

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