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…

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…

Canada delays GHG rules for trailers to 2022

Environment and Climate Change Canada has once again delayed the rollout of emissions rules that would affect trailers, pushing related greenhouse gas (GHG) standards to May 3, 2022. The interim…