Rule
Petroleum-Equivalent Fuel Economy Calculation
Federal Register summary (shortened to 600 characters)
The U.S. Department of Energy (DOE) is amending its regulations in compliance with a United States Court of Appeals for the Eighth Circuit court decision vacating the March 29, 2024 rule revising procedures for calculating a value for the petroleum-equivalent fuel economy of electric vehicles (EVs) used by the Environmental Protection Agency (EPA) in calculating light-duty vehicle manufacturers' compliance with the Department of Transportation's (DOT) Corporate Average Fuel Economy (CAFE) standards.
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- Document number
- 2026-00154
- Published
- Thu, Jan 8, 2026
- Effective
- Thu, Jan 8, 2026
- First on the line
- Oct 10, 2026, 10:00 PM