© Reuters. FILE PHOTO: Signage is seen at the headquarters of the United States Environmental Protection Agency (EPA) in Washington, D.C., U.S., May 10, 2021. REUTERS/Andrew Kelly
By David Shepardson
WASHINGTON (Reuters) – The U.S. Environmental Protection Agency (EPA) will consider adopting more stringent greenhouse gas emissions rules for heavy trucks after Congress passed new incentives to speed the adoption of zero-emission vehicles, the agency told Reuters.
In March, the EPA proposed new rules to cut smog-forming and greenhouse gas (GHG) emissions from heavy-duty vehicles. The agency said it will reopen the proposed GHG rules after passage in August of the climate and spending Inflation Reduction Act.
The EPA will be issuing a supplemental notice of proposed rulemaking to consider more stringent GHG standards for model years 2027 through 2029 in December.
EPA Office of Air and Radiation official Joseph Goffman told Reuters “the big change here is the Inflation Reduction Act. Congress definitely sent a very strong message backed by significant resources.”
EPA believes much greater zero-emission vehicle adoption rates are possible for 2027 through 2029.
The EPA still plans to finalize the proposed smog-forming truck rules by December.
The Truck & Engine Manufacturers Association, which represents companies like Daimler (OTC:) Trucks, Caterpillar (NYSE:) and Cummins (NYSE:), previously raised concerns the EPA proposal could boost costs and result in customers keeping “their higher-emitting trucks longer.”
Nonprofit RMI said the inflation reduction law’s up to $40,000 Qualified Commercial Clean Vehicle tax credit “will turbocharge adoption of electric medium-duty and heavy-duty trucks.” and will make electric trucks cheaper to operate than diesels in most cases.
In March, the EPA said the new heavy truck GHG standards when fully phased in would result in up to 24% to 25% lower carbon dioxide emissions, but environmentalists have pressed the agency to do more.
Sierra Club transportation official Katherine Garcia said “it’s vital that the EPA’s policies match the urgency of the air quality and climate crises. … We urge the administration to move quickly to finalize the near-term heavy-duty standards.”
The EPA in March proposed tighter standards for 17 of the 33 subcategories of vocational and tractor vehicles, including school buses, transit buses, commercial delivery trucks, and short-haul tractors.
Next month, the California Air Resources Board (CARB) will vote on new rules to require zero-emission truck deployments starting in 2024 “and would establish a clear end date of new medium- and heavy-duty internal combustion engine vehicle sales in 2040.”
CARB Chair Liane Randolph told Reuters the board will be voting on purchase requirements for delivery van fleets of 50 or more vehicles to transition to zero-emission purchases. “They need to transition to zero,” Randolph said.
Transportation is the largest source of U.S. GHG emissions, making up 29% of emissions, and heavy-duty vehicles are the second-largest contributor, at 23%, the EPA said.
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