Navistar, alleging that operators can too easily “defeat” SCR systems, thus rendering EPA emissions-reduction rules “irrelevant,” has filed a second lawsuit against EPA.
The lawsuit, filed July 5 with the U.S. District Court for the District of Columbia, alleges that Navistar, a contractor the truck maker hired, and the California Air Resources Board (CARB), found that when drivers don’t keep diesel exhaust fluid (DEF) topped off, it makes EPA’s SCR rule “irrelevant,” because it allows nitrogen oxide emission levels to “skyrocket.”
“EPA has not tested SCR-equipped engines, nor has EPA required them to be tested, in the manner that reflects the way that EPA has authorized them to be driven on the highway,” the lawsuit states.
The suit also accuses EPA Director Lisa Jackson of not doing her duty to enforce the Clean Air Act and says the agency isn’t upholding its mission of protecting public health.
EPA’s first limits on nitrogen oxides emissions from large commercial trucks started in 2001, with the most recent mandated for last year.
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The lawsuit, filed July 5 with the U.S. District Court for the District of Columbia, alleges that Navistar, a contractor the truck maker hired, and the California Air Resources Board (CARB), found that when drivers don’t keep diesel exhaust fluid (DEF) topped off, it makes EPA’s SCR rule “irrelevant,” because it allows nitrogen oxide emission levels to “skyrocket.”
“EPA has not tested SCR-equipped engines, nor has EPA required them to be tested, in the manner that reflects the way that EPA has authorized them to be driven on the highway,” the lawsuit states.
The suit also accuses EPA Director Lisa Jackson of not doing her duty to enforce the Clean Air Act and says the agency isn’t upholding its mission of protecting public health.
EPA’s first limits on nitrogen oxides emissions from large commercial trucks started in 2001, with the most recent mandated for last year.
full story