California approves new efficiency standards for replacement tires

The California Energy Commission has approved the Replacement Tire Efficiency Program (RTEP), establishing the nation’s first efficiency standards for replacement tires sold for passenger vehicles and light-duty trucks in the state.

The regulations target rolling resistance to improve fuel economy and electric vehicle range. The program will be implemented in two phases: the first phase begins January 1, 2029, and the second, stricter phase begins January 1, 2033. The commission estimates the program will reduce carbon dioxide emissions by 2 million metric tons annually and save drivers nearly $1 billion per year in energy costs.

Industry representatives have expressed concerns regarding the mandate. Goodyear lobbyists warned that the regulations could eliminate approximately 70 percent of currently available replacement tires and increase upfront consumer costs. Conversely, the CEC projects incremental costs of $1.50 per tire in Phase 1 and $6.50 per tire in Phase 2, arguing that long-term fuel savings will outweigh these initial expenses.