How will the second phase of the greenhouse gas rules affect medium-duty vehicles?

The California Air Resources Board (CARB) voted to maintain its greenhouse gas emission standards and zero-emission vehicle program for passenger cars and...

The California Air Resources Board has released a Proposed Scoping Plan that sets new goals for the state to reduce greenhouse gas emissions to 40% below...

The EPA expects that automakers will raise fuel economy 10 mpg higher than the current fleet average by model year 2025.

The Environmental Protection Agency and the National Highway Traffic Safety Administration have officially published the Phase 2 greenhouse gas/ fuel...

The federal government released highly anticipated "Phase 2" greenhouse gas/fuel economy rules for medium and heavy-duty vehicles Tuesday, which in some...

Sacramento County, Calif. has begun using renewable diesel to fuel many of its heavy-duty vehicles, including more than 400 municipal public works trucks...

Alameda and San Joaquin Counties in California have both begun using renewable diesel to fuel their fleets.

The City of Carlsbad, Calif., is one of a growing number of West Coast fleets fueling its diesel vehicles with renewable diesel.

Napa County will continue to look at adding solar projects and recently purchased the first two plug-in hybrids for its fleet with the possibility of adding...