California Tightens Tire Rules to Boost Efficiency, Shrinking Choices

California's Energy Commission unanimously approved a rule requiring most replacement tires sold in the state to meet rolling-resistance levels close to the original equipment, significantly narrowing available options (about 70% of current tires would no longer qualify). The regime phases in from 2029 to 2033, with per-tire costs rising from roughly $1.50 to $6.50, offset by projected gasoline savings (about $179 per tire set under certain gas-price assumptions). Exceptions include used, motorsport, snow, motorcycle, and large off-road tires. Critics, including Goodyear, warn costs could be higher than government estimates. A new leaf-rating system will signal tire efficiency. No public vote occurred, and other states are watching as California’s standards could spread.