Report claims agency underestimated emission compliance costs for new trucks by a factor of two to five for model years 2004-2010.
President Obama announced a $1 billion initiative to spur deployment of clean, advanced vehicles.
DTNA’s GHG14 compliance came a year ahead of the mandate for certification by the EPA and the Highway Traffic Safety Administration.
Company, facing millions of dollars in potential fines, says its "2010 transition was appropriate."
California Air Resources Board had issued a public letter to Navistar saying the company's emissions credits for the engine will expire Feb. 29.
New FMCSA rules require truckers to take a 30 minute break. What effect will this have on air quality?
Agency's executive order says emission credits allowing sale of engines run out Feb. 29.
Company sought to force the U.S. Environmental Protection Agency to recall 2010 model year engines using selective catalytic reduction.
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