NHTSA Issues Interpretive Rule on Medium-and Heavy-Duty Engine Efficiency Standards
September 10, 2026
September 10, 2026
HERNDON, Virginia, Sept. 10 [Category: Transportation] -- The RV Industry Association posted the following news:
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NHTSA Issues Interpretive Rule on Medium-and Heavy-Duty Engine Efficiency Standards
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On August 31, 2026, the National Highway Traffic Safety Administration's (NHTSA) issued an interpretive rule declaring the agency lacks the statutory authority to mandate standalone fuel-efficiency standards on medium-and heavy-duty engin . . .
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NHTSA Issues Interpretive Rule on Medium-and Heavy-Duty Engine Efficiency Standards
*
On August 31, 2026, the National Highway Traffic Safety Administration's (NHTSA) issued an interpretive rule declaring the agency lacks the statutory authority to mandate standalone fuel-efficiency standards on medium-and heavy-duty engin . . .