California tire mandate faces industry backlash over costs and performance

The California Energy Commission has approved a plan to phase out the sale of many replacement tires that do not meet strict energy-efficiency standards, with the prohibition set to begin in 2029. The mandate targets “rolling resistance” to improve fuel economy for gasoline vehicles and extend the range of electric vehicles, thereby reducing emissions.

Industry leaders have expressed significant concern regarding the policy. Darren Thomas, President and CEO of Dunlop Tires North America, criticized the move, comparing the potential for unintended consequences to the state’s high-speed rail project. Critics argue that prioritizing rolling resistance could force manufacturers to make design trade-offs that negatively impact traction, wet-weather performance, and tread life.

Economic concerns have also been raised, with estimates suggesting that up to 70 percent of the current replacement tire market could be affected. Industry groups warn that these regulations could lead to substantial price increases, potentially adding hundreds of dollars to the cost of a full set of tires for consumers.