OKLAHOMA CITY (KFOR) - Oklahoma Attorney General Gentner Drummond is calling the U.S. Environmental Protection Agency (EPA) decision to close the file on California’s request for a waiver for its Advanced Clean Fleets regulation a Oklahoma victory. Drummond's office says, the victory prevents harm to Oklahoma's fossil fuels industry. In September, Drummond alongside 23 other state attorneys general filed a letter with the EPA arguing against allowing California to exceed its statutory and regulatory authority by implementing an electric-vehicle mandate. DHS workers could face kidnapping charges under new child welfare bill Under the Clean Air Act, California cannot enforce Advanced Clean Fleets without an EPA waiver, says AG's office. “California’s mandate is an absurd overreach that would have inflicted serious harm to our fossil fuels industry,” Drummond said. “This victory helps keep our supply line in order across the United States. I am grateful for this resolution, and I will continue to fight against the radical climate agenda of the far left.” Earlier this month, the EPA granted several other requests that California made, but it did not act on its Advanced Clean Fleets request. California withdrew its request Monday and the EPA closed the file Tuesday, according to Drummond's office. Also joining the letter were the attorneys general from Alabama, Arkansas, Georgia, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Montana, Nebraska, North Dakota, Ohio, South Carolina, South Dakota, Tennessee, Texas, Utah, Virginia, West Virginia and Wyoming. Read full letter here.