This bill would stop states from using the Clean Air Act to limit or ban the sale or use of new gas- and diesel-powered cars and trucks. It says the EPA cannot grant, or keep in place, waivers for state rules that directly or indirectly cut off sales or use of new vehicles with internal combustion engines. It also blocks states from changing their rules later and claiming they still fit under an older EPA waiver. If any such waivers were granted after January 1, 2022, the EPA would have to revoke them if they limit new gas or diesel vehicle sales or use .

In short, the bill aims to keep gas and diesel vehicle options available for new car buyers by limiting state power to phase them out through the Clean Air Act waiver process .

• Who is affected: State regulators, the EPA, carmakers, dealers, and people buying new cars and trucks .
• What changes: EPA cannot approve or keep waivers for state rules that limit sales or use of new gas/diesel vehicles; some waivers granted since 2022 would be revoked if they do that .
• When: These limits take effect upon enactment; the revocation applies to waivers granted on or after January 1, 2022, up to the date the bill becomes law .