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NHTSA Issues Interpretive Rule Ending Fuel Efficiency Regulation Of Standalone Medium And Heavy-Duty Truck Engines, Says It Lacks Statutory Authority Over Non-Vehicle Components; Existing Standards Unchanged Pending Rulemaking

Benzinga·08/28/2026 14:22:20
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https://www.nhtsa.gov/press-releases/truck-engine-fuel-efficiency-rule-reversed