California Approves Replacement Tire Efficiency Standards
Published Friday, September 18, 2026
The California Energy Commission unanimously approved on Aug. 17 the nation’s first efficiency standards for replacement tires. The regulation applies to replacement tires sold in California for passenger vehicles and light-duty trucks. Requirements will be phased in beginning in 2029, with full implementation scheduled for 2033.
The standards are intended to improve fuel efficiency by requiring replacement tires to meet rolling-resistance requirements comparable to those for tires installed on new vehicles. The commission estimates that the standards will save drivers approximately $179 over the life of a set of tires, based on a gasoline price of $4.60 per gallon. The agency also projects nearly $1 billion in annual statewide fuel and electricity savings and a reduction of approximately 2 million metric tons of carbon dioxide emissions each year.
Most agricultural tractor and farm-implement tires will not be affected. The regulation exempts several specialty tire categories, including off-road and all-terrain vehicle tires, motorcycle tires, competition tires, winter tires, spare tires and tires not rated for speeds above 50 mph. However, light-truck tires commonly used on farm and ranch pickups are covered.
The cost and potential effect on tire life remain uncertain. The commission estimates the standards will add approximately $1.50 per tire in 2029 and $6.50 per tire by 2033, with fuel savings expected to offset the additional cost. However, some tire industry estimates suggest the total cost could exceed $300 for a set of four tires.
Industry groups have raised concerns about potential tradeoffs involving fuel efficiency, tread life and wet traction. The U.S. Tire Manufacturers Association has questioned whether sufficient data support applying the standards to light-truck tires, noting that the commission tested only 16 such tires. The commission maintains the standards will not reduce tire life or safety, while manufacturers including Michelin and Bridgestone have said the requirements can be met without compromising either.
No action is required for existing tires. The first requirements will take effect in 2029, with full implementation scheduled for 2033.
Staff contact: Daniella Legostaev; dlegostaev@cfbf.com.
.svg.png?cacheid=0.9616018850896426)
