Biden Set to Tighten Fuel-Efficiency Standards for Automakers

Traffic on highway 101 in San Francisco, California.

Photographer: David Paul Morris/Bloomberg
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The Biden administration is poised to issue a proposal as early as Friday ordering automakers to increase the average fuel economy of their vehicles, according to people familiar with the matter.

The proposed rule, expected to be made public by the National Highway Traffic Safety Administration, will be applicable for model years 2027 and beyond, according to the people who asked not to be identified because they weren’t authorized to speak publicly about it.