California replacement tire limits: new rules phase out inefficient options

Key Points:

• California Energy Commission unanimously approved new regulations to restrict the sale of replacement tires that do not meet energy-efficiency standards, aiming to reduce rolling resistance and improve fuel economy.
• The rules will be phased in starting in 2029, targeting the most inefficient tires first, with stricter standards coming into effect in 2033, potentially eliminating about 70% of tires currently sold in the state by then.
• The CEC estimates that these measures could save drivers up to $79 in fuel or electricity costs over four months initially, increasing to $153 over seven months in later phases, with an average tire cost increase of about $6.50.
• Tire manufacturers like Goodyear have expressed concerns that the mandate could increase costs for consumers and limit tire options, while some tire categories such as snow, used, retreaded, and off-road tires are exempt from the new rules.
• Officials emphasize the regulations are designed to protect consumers by promoting long-term savings and energy efficiency, aligning replacement tire standards with those of factory-installed tires.