Trucking groups balk at efforts to apply California emissions standards across U.S.

The Clean Freight Coalition — representing some of the largest trucking associations in the U.S. — is blasting efforts by more than 80 Congressional Democrats to expand California emissions standards…

Proposed GHG rule ‘seriously misses the mark’, API says

The American Petroleum Institute (API) is calling on the U.S. Environmental Protection Agency (EPA) to modify plans for greenhouse gas standards that apply to heavy-duty vehicles – arguing that the…

Plans for trailer-based GHG rules in question

Trailer designs play a role in fuel economy, but U.S. regulators seem ready to abandon the stalled rules that would have required trailer updates in the name of reducing greenhouse…

Emissions updates can come too far, too fast

Except for an occasional truck rodeo, the era of rolling black coal and soot-lined exhaust stacks is behind us. Exhaust gas recirculation (EGR) systems slashed smog-producing NOx. Diesel particulate filters…

U.S. EPA unveils new emissions standards for Model Year 2027 and beyond

The U.S. Environmental Protection Agency (EPA) has adopted a new set of emissions standards for heavy-duty vehicles and engines that will apply beginning in Model Year 2027 – placing a…

No motor means no emissions standards, court says in trailer ruling

A U.S. court has dealt a blow to plans that would apply greenhouse gas limits and fuel-efficiency standards to heavy-duty trailers. Under a proposed rule, manufacturers would have been required…

U.S. travels two paths to lower truck emissions

TORONTO, Ont. – Two U.S. regulatory bodies are taking decidedly different paths to clean up truck emissions, leaving fleets with looming challenges including a new generation of equipment and even…

U.S. EPA plans further NOx cuts

WASHINGTON, D.C. – The U.S. Environmental Protection Agency (EPA) has announced plans to further cut nitrogen oxide (NOx) emissions from on-highway trucks and engines. Known as the Cleaner…