The DERA funding covers engine replacements, repowers, and idle reduction technologies to clean up a variety of older diesel engines, including those in...

Commercial fleets that converted from diesel to natural gas power could potentially accelerate the rate of climate change, finds one report. What is the...

Allison Transmission Holdings Inc. recently announced that it has been working with the EPA and NHTSA as they consider revisions to the 'Phase I' Model Year...

The federal government’s top vehicle and clean-air regulators on June 19 formally announced their proposal for extending fuel-economy and greenhouse-gas...

After running nine months behind schedule, the U.S. Environmental Protection Agency submitted its final rule for the 2014 renewable fuel standard to the...

The U.S. Environmental Protection Agency (EPA) announced that $26 million in grant funding will be made available to establish clean diesel projects with...

Two weeks have been added to the period in which comments on the proposed Phase 2 round of federal GHG rules for commercial vehicles will be accepted.

EPA and NHTSA's public hearing on proposed GHG Phase 2 standards allowed fleets, manufacturers, environmental groups and legislators to air their concerns...

EPA and NHTSA will hold a public hearing on Aug. 6 in Chicago for the proposed Phase 2 Greenhouse Gas Emissions and Fuel Efficiency Standards for Medium-...