California sets first rules for tire efficiency to save drivers money
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California’s Energy Commission approved a new rule requiring replacement tires sold in the state to meet minimum energy efficiency standards.
Automakers currently use low rolling resistance tires to improve vehicle fuel economy, but these tires are often replaced with less efficient models. The new rule will phase in standards starting in 2029, ensuring replacement tires are as efficient as original equipment. The commission estimates California drivers will save around $1 billion annually on fuel costs.
The rule also establishes a “leaf” rating system to help consumers identify efficient tires, similar to the Energy Star label. While some tire manufacturers like Michelin supported the rule, others like the Specialty Equipment Market Association expressed concern about increased costs for consumers. The state projects that the improved tire efficiency will reduce carbon dioxide emissions by 2 million tons each year.
California began working toward these regulations in 2003, pausing in 2007 when the federal government attempted to take over the effort. With the rule now finalised, supporters expect other states to adopt similar standards, as has happened with California’s emissions and lightbulb regulations.
