Dunlop CEO says California tire rules lack real-world testing

Dunlop CEO says California tire rules lack real-world testing

Dunlop Tires North America chief Darren Thomas criticized California’s newly adopted rolling-resistance tire standards, saying they lack real-world testing and could push consumer prices higher. The California Energy Commission voted unanimously to implement a phased Replacement Tire Efficiency Program, requiring most replacement tires sold in the state to meet low-rolling-resistance limits starting in 2029, with stricter limits slated for 2033.

State regulators said the rules aim to improve fuel efficiency and reduce emissions, while manufacturers including Goodyear, Bridgestone and Michelin warned the measures could raise tire costs for drivers. Governor Gavin Newsom defended the program, asserting it will cut fuel use and save billions for motorists.

Actors

California Energy Commission David Hochschild Nancy Skinner Goodyear Bridgestone Michelin

Locations

California, United States

Articles

August 26, 2026
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Dunlop CEO warns California tire efficiency rules lack real-world testing
Dunlop CEO warns California tire efficiency rules lack real-world testing

New York Post • 26 Aug 19:17

Dunlop Tires North America chief Darren Thomas criticized the state's new rolling-resistance tire standards, likening them to the costly high-speed rail project and urging further study before implementation.

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August 25, 2026
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Dunlop warns California tire efficiency rules could raise consumer prices
Dunlop warns California tire efficiency rules could raise consumer prices

New York Post • 25 Aug 15:13

Dunlop Tires' North America chief said the state's new rolling-resistance standards are likely to increase tire costs and may affect safety and market competition.

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August 21, 2026
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California adopts new rolling-resistance standards for replacement tires
California adopts new rolling-resistance standards for replacement tires

Yahoo Autos • 21 Aug 19:25

The California Energy Commission approved rules that will require most replacement tires sold in the state to meet low rolling-resistance limits, with phased implementation beginning in 2029.

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California adopts new low-rolling-resistance tire standards starting 2029
California adopts new low-rolling-resistance tire standards starting 2029

Jalopnik • 21 Aug 19:25

The California Energy Commission voted to require most replacement tires sold in the state to meet low rolling-resistance limits, a move that will limit available models but is projected to lower fuel costs.

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California adopts new tire efficiency standards, limiting low-rolling-resistance models
California adopts new tire efficiency standards, limiting low-rolling-resistance models

Yahoo Autos • 21 Aug 15:14

The California Energy Commission approved a rule that will phase out tires that do not meet rolling-resistance limits, with the first phase starting in 2029 and a stricter phase in 2033.

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August 19, 2026
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California Governor Defends New Tire Efficiency Rules Amid Cost Concerns
California Governor Defends New Tire Efficiency Rules Amid Cost Concerns

New York Post • 19 Aug 22:30

Gov. Gavin Newsom said the state's new tire standards will cut fuel use and save drivers billions annually, while critics warn they could raise tire prices by hundreds of dollars.

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California adopts new tire efficiency standards slated for 2029
California adopts new tire efficiency standards slated for 2029

SFGATE • 19 Aug 22:27

The California Energy Commission approved a regulation requiring new tires to meet fuel-efficiency standards, projecting modest price increases but significant fuel savings, while some industry groups expressed concerns about enforcement and imports.

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California Approves First Nationwide Replacement Tire Efficiency Regulations
California Approves First Nationwide Replacement Tire Efficiency Regulations

Road & Track • 19 Aug 15:51

California's Energy Commission has adopted the Replacement Tire Efficiency Program, with the initial phase set to begin in 2029 and a stricter phase slated for 2033, aiming to cut driver costs and lower emissions.

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August 18, 2026
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California adopts phased rollout of stricter efficiency standards for replacement tires
California adopts phased rollout of stricter efficiency standards for replacement tires

Fox Business • 18 Aug 21:00

The California Energy Commission approved rules that will gradually ban replacement tires with high rolling resistance, beginning in 2029, aiming to improve fuel and electricity savings for drivers.

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California adopts phased tire efficiency standards, manufacturers warn of higher costs
California adopts phased tire efficiency standards, manufacturers warn of higher costs

ABC7 Los Angeles • 18 Aug 20:53

State regulators approved rules to phase out low-efficiency replacement tires, citing long-term fuel savings, while manufacturers say the measures could raise purchase prices for consumers.

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August 17, 2026
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California Energy Commission adopts phased rollout of energy-efficient replacement tire standards
California Energy Commission adopts phased rollout of energy-efficient replacement tire standards

KCRA • 17 Aug 23:18

The California Energy Commission voted unanimously to phase out replacement tires that do not meet new rolling-resistance limits, with the first limits taking effect in 2029 and stricter limits in 2033.

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