California Governor Gavin Newsom suspended the state's seasonal summer-blend gasoline requirement for the remainder of the season on Monday, directing state agencies to allow winter-blend gasoline to be manufactured, imported, distributed and sold in California immediately.
The action, announced by the Governor's Press Office, is aimed at lowering prices as President Trump's war in Iran continues to drive up fuel costs nationwide. According to the release, the war has cost Americans more than $120 billion in extra fuel costs in just seven months, or $428 per California household, weakening the United States' economic and energy security.
"Trump's war in Iran has driven up the price of oil around the world, and Californians have been paying the price every time they fill up," Newsom said. "For over seven months, the Trump administration and Republicans in Congress have failed to protect working families from their nationwide gas and diesel price crisis – and there is still no end in sight to the war. California will keep doing what we can to bring costs down and protect consumers – but states cannot indefinitely insulate families from a global oil shock. Trump must end his war."
Newsom sent a letter suspending the summer-gasoline requirement and directing the California Air Resources Board and the California Department of Food and Agriculture to enable winter-blend gasoline sales immediately, as provided for by the Legislature in Senate Bill 237 (Grayson, 2025). The release said other states have also made temporary adjustments to seasonal fuel blend requirements in response to the price spikes.
The Governor also directed the California Energy Commission, in consultation with CARB and the Division of Petroleum Market Oversight, to publish a regular public spot-market report for gasoline and diesel. The release said a small number of spot-market trades can influence the price of far more fuel sold statewide, and that a public report would bring transparency into whether quoted prices reflect broad trading activity or only a handful of transactions.
The letter further directs the CEC to collect information on renewable diesel and consider reporting renewable diesel prices separately from petroleum diesel prices, so consumers see the benefit of a fuel that does not come from expensive crude oil and now makes up a large share of California's diesel market.
The action builds on earlier efforts, including legislation signed this month to accelerate E15 gasoline sales and CARB amendments adopted last week supporting E15 availability. Since Newsom took office, California has committed approximately $6.6 billion to clean cars, trucks and charging infrastructure, and the state introduced instant MyFirstEV rebates after the Trump administration canceled electric vehicle incentives.
"California will keep doing what Washington won't: protect Californians at the pump today and give them a way out of this cycle of fossil fuel price spikes," the release said.