How the Government Will Measure Electric Vehicle Fuel Efficiency
Official: Petroleum-Equivalent Fuel Economy Calculation
Reading: Removing the fuel content factor from the petroleum-equivalency calculation for EVs reduces the environmental credit assigned to electric vehicles under CAFE standards, thereby weakening the stringency of the federal fuel-economy rule.
This change will affect how car manufacturers must meet fuel economy standards.
In clear language
The federal government is changing how it calculates fuel efficiency ratings for electric vehicles. They're removing a specific factor (called the fuel content factor) from the calculation because a court ruled that including it went beyond what the law allowed. This change will affect how car manufacturers must meet fuel economy standards.
How does this affect you?
Pick the type of resident or organization you most identify with — we'll generate a plain-language breakdown of what changes for you and what you can do about it.
Who does this affect?
- Car manufacturers making light-duty vehicles (cars, SUVs, trucks) who must meet federal fuel economy standards
- Electric vehicle buyers, as this may influence which EVs manufacturers produce and how they're rated
- Anyone comparing fuel efficiency ratings of electric vehicles when shopping
What can you do?
- If you're shopping for an electric vehicle, understand that fuel efficiency ratings may be recalculated, so compare vehicles using the most current EPA ratings
- Stay informed about changes to EV standards, as manufacturers may adjust their vehicle offerings in response
Timeline
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- Effective: 2026-02-19
- 2026-02-19: Rule becomes effective
No New Jersey official has a verified action on this policy yet.
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