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US EPA plans to delay enforcement of Biden vehicle pollution rules

A senior official at the U.S. Environmental Protection Agency has told us that they plan to delay enforcement of an old Biden regulation which required?significant reductions in air pollution caused by vehicles?.

The EPA published a final rule in April 2024 that requires significant reductions of so-called "criteria pollution" emitted by passenger and commercial vehicles for the model years 2027-2032. The EPA, as part of a delayed plan, is considering keeping in place the 2026 standard for an additional two years. This will give them time to review the Biden era standards and the way they set?standards.

Separately, the EPA has proposed revoking scientific findings that justified setting greenhouse-gas emission standards for vehicles?and engines.

In September, the Alliance for Automotive Innovation (AAI), a trade association representing General Motors and Toyota Motor as well as Volkswagen, Ford Stellantis, Hyundai, and other companies, told the EPA that the criteria pollutant standard is "impossible to achieve without significant increases in EV markets share while adding hundreds of dollars in additional costs for?all internal-combustion engine vehicles." These regulations should be changed to create a "cost-effective" criteria emission standard. EPA Administrator, Lee Zeldin announced in March that the agency would reconsider its 2024 rules to reduce tailpipe emissions from passenger vehicles by almost 50% by 2032 compared to projected levels for 2027. According to the EPA, between 35% and 56% new vehicles sold in 2030-2032 will need to be electrically powered to meet compliance. Zeldin said to reporters that automakers had told the EPA the EPA's requirements were "causing adverse impacts."

The 'Biden Rules' require a 50% cut in criterions pollutants such as nitrogen oxides by 2032 for light-duty vehicles, and a 58% reduction for medium-duty vehicles. EPA estimated last year that reduced emissions of pollutants contributing to the formation of smog and soot would result in an annualized benefit of $13 billion.

The EPA is evaluating whether automakers can continue to use?electric?vehicles in order to meet standards, and if the agency should allow credit banking and trade. The Transportation Department announced last week that it would end credit trading as part of its significant rollback in fuel economy standards until 2031.

Automakers want EPA also to implement revised GHG Standards as a backup in the event motor vehicle greenhouse gas regulations were retained or restored in any way. EPA also considers some changes in heavy-duty regulations, including warranty obligations and usefulness requirements.

(source: Reuters)