Biden adopts new emissions rules for US cars, gives automakers a break in early years

The Biden administration on Wednesday finalized tough new greenhouse gas standards for cars sold in the U.S., but gave automakers worried that they might be too strict to comply with in the near-term a break in the first few years before they increase more steeply.

A year ago in April, the U.S. Environmental Protection Agency (EPA) shocked the auto industry and heartened environmentalists by proposing tailpipe emissions standards so strict that, by model year 2032, automakers would virtually be required to ensure that two-thirds of all new cars and light-duty trucks sold were electric vehicles (EVs) or potentially face stiff fines.

The final standards released Wednesday didn't back off that ambitious 2032 target in terms of the fleetwide reduction in greenhouse gases, including carbon monoxide, hydrocarbons and others that are considered dangerous to human health and contribute to climate change.

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But they did change the amount by which those reductions occur beginning with model year 2027, making them somewhat less strict compared with the current standards in the first couple of years, before ramping them up more steeply later. And while the original proposal — which was always technology-neutral in theory, meaning automakers could sell any cars and light-duty trucks they wanted as long as they hit the fleetwide reductions — noted that the likely and least costly path toward hitting them meant an enormous growth in the sales of plug-in electric vehicles (PEVs), which accounted for only a portion of the 9% of new car sales last year, the final rule outlined several pathways that could work.

For instance, the EPA said, under one likely pathway, the percentage of light-duty trucks and cars powered by internal combustion engines (ICEs) could drop from 64% of new vehicle sales in model year (MY) 2027 and 58% in MY 2028, to 29% in MY 2032; while the percentage of battery-only electric vehicles (BEVs) could increase from 26% in 2027 and 31% in 2028, to 56% in 2028, with other EVs — pure hybrids and plug-in hybrids — making up the difference.

In the proposed rule last year, however, the pathway foresaw BEVs needing to account for 36% of new cars in 2027 and 45% in 2028 — a much steeper sales curve.

That change didn't sit well with some environmental groups: Dan Becker, director of the Center for Biological Diversity’s Safe Climate Transport Campaign, said the EPA "caved to pressure from Big Auto, Big Oil and car dealers" allowing more damage to the planet and public health up front. But many other environmental groups cheered the plan as historically strict and automakers and the UAW said it recognized the challenges facing the industry in the move to get the public to embrace EVs.