Kenneth Schrupp, The Center Square

Dozens of groups are urging Congress to overturn the Biden administration’s approval of California’s gas car ban, under which new gas-powered cars must be 100% zero-emission by 2035 and 35% for the model year 2026 vehicles already starting to arrive at dealers.

The rules apply not only to California, but Washington, D.C. and the 11 other states that have signed on to adopt California’s gas-car-banning emissions standards, making up 40% of the U.S. market.

The letter’s 26 signatories include the California Policy Center, a center-right think tank, and Citizens for Prosperity, a libertarian advocacy group.

ZEV market share in California declined from 22% in 2024 to 20.8% in the first quarter of 2025, leading Toyota to say the state’s ZEV targets are “impossible” to meet. To hit 35%, ZEV market share would need to increase 68% practically overnight.

Carmakers earn credits for selling qualifying battery-electric and plug-in-hybrid vehicles. Those who don’t have enough credits to keep selling standard hybrid or internal combustion vehicles can purchase credits from those with excess credits, such as Tesla.

But if there aren’t enough credits to go around, carmakers could face fines of $20,000 per non-ZEV vehicle sold for each credit they are short, which has led dealers to warn they may be forced to only offer pricier plug-in-hybrid and all-electric models.

The House resolution is the last option short of a court decision or revision in the California legislature that could reverse the rule. The resolution now heads to the House Committee on Energy and Commerce to be scheduled for a vote.