California adopts phased rollout of stricter efficiency standards for replacement tires

California regulators approved new efficiency standards for replacement tires, requiring lower rolling resistance to reduce vehicle fuel and electricity consumption. The California Energy Commission (CEC) adopted the rules unanimously, with the first phase starting in 2029 and a tighter threshold taking effect in 2033. The measures target tires that are less efficient than the original equipment fitted to new cars, which typically have low rolling resistance.

CEC officials said the standards could save drivers about $79 over four months in the initial phase and roughly $153 over seven months after the second phase begins. The commission estimates the tighter rules will increase the average price of a tire by about $6.50.

"These regulations are a tool within our authority that can save money for every Californian," said Commissioner Nancy Skinner.

"I see this as sheltering the public from higher costs in the long run," said David Hochschild, chairman of the CEC.

The CEC excluded certain categories, such as snow tires, used and retreaded tires, deep-tread off-road tires, motorcycle tires, and tires for emergency vehicles. Industry groups, including Goodyear, expressed concern that the mandate could raise costs for consumers and noted that roughly 70% of tires currently sold in the state might be affected by 2033.