LogBook

Overdrive Staff | August 05, 2011

— Jill Dunn



Navistar sues EPA again over SCR

Navistar has filed another lawsuit against the U.S. Environmental Protection Agency to support its exhaust gas recirculation-only engine against competitors that use selective catalytic reduction technology to meet 2010 diesel exhaust emissions regulations.

Navistar opted to use in-cylinder EGR technology to meet current standards in conjunction with banked EPA credits for meeting and exceeding pre-existing emissions regulations in effect prior to the 2010 regulations.

In the suit filed July 5 with the U.S. District Court for the District of Columbia, Navistar alleges, with research from a contractor and the California Air Resources Board, that nitrogen oxide emissions skyrocket when drivers don’t keep diesel exhaust fluid topped off. This renders EPA’s rule “irrelevant” altogether, Navistar says.

Navistar accuses EPA Director Lisa Jackson of failing to uphold the Clean Air Act and her agency of failing to protect public health.

Navistar spokesman Stephen Schrier said the lawsuit is about ensuring level competition in the heavy-duty truck market. He notes that testing done by Navistar shows that operators can “defeat” SCR systems by adding water to the system instead of DEF, allowing trucks to operate in violation of 2010 emissions regulations.

“The complaint is frivolous,” said Brandon Borgna, spokesman for Volvo Trucks.

John Walsh, spokesman for Mack Trucks, said, “Their complaint has no merit, and we intend to file a motion to intervene.”

Navistar previously had sued both EPA and CARB over their acceptance of SCR technology without stronger measures to prevent engine operation without DEF or an operational SCR system. The truck maker last year settled both lawsuits by garnering a commitment for further review.

In June, EPA updated its guidance for truck engine certification, calling on SCR engine makers to continue developing warning systems that alert drivers when the truck’s DEF tank is nearly empty or filled with a liquid other than DEF.

— Jack Roberts



New state laws affect owner-operators

Trucking-supported changes affecting owner-operators and workers’ compensation became law last month in Tennessee, while similar legislation will soon become state regulations in Pennsylvania and Maine.

More About:

, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,

OverdriveOnline.com strives to maintain an open forum for reader opinions. Click here to read our comment policy.