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Emissions

California Bill Calls for HD Truck Emissions Testing

Unlike passenger vehicles, which require biennial smog checks in California, heavy-duty diesel trucks are not currently required to undergo regular emissions testing. That might change with the introduction of a bill in the state Senate.

Roush CleanTech's Roadshow

Roush CleanTech stopped in Los Angeles Thursday as part of its California Roadshow, a three-city tour dedicated to showcasing the benefits of alternative fuels.

Tennessee Tech Says Glider Kit Emissions Study Conclusions Inaccurate

Tennessee Tech said some of the conclusions of its study of glider kit emissions were not accurate, and that the data does not support its earlier statements that the remanufactured engines used in glider kits performed as well as OEM engines certified under EPA emissions standards.