A pair of Cummins Westport, Inc. natural gas engines have gained approval from the U.S. Environmental Protection Agency and California Air Resources Board for medium-duty vehicles, the engine maker announced.
EPA Certifies AGA's Natural Gas System for 2018 GM Trucks
The Environmental Protection Agency has certified AGA Systems' bi-fuel and dedicated compressed natural gas fueling system for General Motors' 2018 lineup of Chevrolet Silverado and GMC Sierra 2500, 3500, and 4500 trucks.