The Biden administration will propose strict new automobile pollution limits this week that would require at least 54% of new vehicles sold in the U.S. to be electric by 2030 and as many as two of every three by 2032, according to industry and environmental officials briefed on the plan.

The proposed regulation, to be released Wednesday by the Environmental Protection Agency, would set greenhouse gas emissions limits for the 2027 through 2032 model years for passenger vehicles that would be even stricter than goals the auto industry agreed to in 2021.

The EPA will offer a range of options that the agency can select after a public comment period, the officials said. They asked not to be identified because the proposal hasn’t been made public. The proposed regulation isn’t expected to become final until next year.

Environmental groups are applauding the ambitious numbers, which were first reported over the weekend by The New York Times. But the plan is likely to get strong pushback from the auto industry, which pledged in August 2021 to make EVs half of U.S. new car sales by 2030 as it moves toward a history-making transition away from internal combustion engines.