NHTSAProposed Rule
Hearings, Meetings, Proceedings, etc.: Corporate Average Fuel Economy Standards: The Safer Affordable Fuel-Efficient Vehicle Rule III for Model Years 2022 to 2031 Passenger Cars and Light Trucks
TransportationEnvironmentEnergy
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Summary
This proposed rule sets fuel efficiency standards for cars and light trucks sold from 2022 to 2031, requiring manufacturers to make vehicles that use less gasoline. The rule aims to reduce fuel costs for drivers, cut pollution, and decrease America's dependence on oil.
Key Points
- 1Car and truck manufacturers must gradually improve fuel efficiency over the next several years, meaning new vehicles will travel farther on a gallon of gas
- 2Consumers will save money at the pump because more fuel-efficient vehicles require less gasoline to drive the same distance
- 3The rule reduces greenhouse gas emissions and air pollution by requiring vehicles to burn less fuel
- 4Manufacturers must meet these standards or face penalties, which creates incentives to invest in better engine technology and lighter vehicle designs
- 5The public has an opportunity to comment on this proposed rule before it becomes final, and the rule applies to model years 2022-2031
Impact Assessment
If you are a vehicle manufacturer, this means you must redesign and retool production to meet stricter fuel efficiency standards for all passenger cars and light trucks sold in the U.S. through 2031.
Impact Level
Significant
Geographic Scope
National
Compliance Cost
Significant
Who is Affected
ManufacturersConsumersEnergy CompaniesTransportation Companies
Key Dates
Published
December 12, 2025
Regulatory Connections
Amends CFR Sections
49 CFR Part 53649 CFR Part 537
Other Documents in This Rulemaking (NHTSA-2025-0491)
This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.
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