California Becomes First State to Regulate Replacement Tire Efficiency, But Track Rubber Remains Untouched

California has officially enacted the nation’s first efficiency standards for replacement tires, set to take effect in two phases starting in 2029. The California Energy Commission (CEC) unanimously approved the rules, which target rolling resistance—the energy lost as a tire deforms while rolling—to cut fuel consumption and greenhouse gas emissions. The first phase, running from 2029 to 2033, is expected to add just $1.50 per tire, while the second phase, beginning in 2033, could increase the cost to $6.50 per tire. Despite the upfront costs, regulators claim drivers will save money in the long run, projecting nearly $1 billion in annual savings on gasoline and electricity, alongside a yearly reduction of two million metric tons of CO2. A typical gasoline-car driver could save $179 in fuel over the life of a tire set, assuming $4.60-per-gallon gasoline. However, the tire industry has raised concerns about higher costs, enforcement challenges, and the influx of cheaper non-compliant imports. Currently, only about 30 percent of tires meet the standards California plans to enforce by 2033. The regulations include exemptions for ultra-high-performance rubber, track tires, large off-road tires, motorcycle tires, and certain winter-focused products. While enthusiasts are relieved that track rubber remains untouched, some high-performance summer tires that don’t qualify as extreme enough for track use could face difficulties or disappear from California retailers. It’s important to note that the rules govern which replacement tires can be sold in the state, not what owners can install on their vehicles. So, while California won’t confiscate your weekend track rubber, residents might consider a road trip to Nevada to purchase tires unavailable in their home state.