Three consumer groups are urging 22 states to stop buying vehicles from select OEMs for their state fleets. The Consumer Federation of America, Consumer Action, and Consumers for Auto Reliability and Safety sent letters to governors with this request this month, Colorado Politics reported. Each of the 22 states has joined California in its lawsuit of the Trump administration for revoking the state’s waiver to set its own emissions standards for automobiles, and nine automakers have sided with the Trump administration in the lawsuit.

“Consumer Federation of America, Consumer Action, and Consumers for Auto Reliability and Safety believe that by boycotting these nine automakers from state fleet purchases you can send a signal and show them that you do not condone the fact that they are actively working to roll back progress on the climate crisis and air pollution,” one of the letters reads.

The letter urges the governors to buy vehicles only from BMW, Ford, Honda, and Volkswagen — all of which agreed to voluntarily follow California's state vehicle emissions standards — while avoiding purchases from GM, FCA, Toyota, Nissan, Subaru, Hyundai, Kia, Mazda, and Mitsubishi. California has already banned state fleet procurement from these automakers, and Los Angeles County has done the same for county vehicles.