<RULE>
DEPARTMENT OF TRANSPORTATION
<SUBAGY>National Highway Traffic Safety Administration</SUBAGY>
<CFR>49 CFR Parts 523, 531, 533, 535, 536, and 537</CFR>
<DEPDOC>[NHTSA-2023-0022]</DEPDOC>
<RIN>RIN 2127-AM55</RIN>
<SUBJECT>Corporate Average Fuel Economy Standards for Passenger Cars and Light Trucks for Model Years 2027 and Beyond and Fuel Efficiency Standards for Heavy-Duty Pickup Trucks and Vans for Model Years 2030 and Beyond</SUBJECT>
<HD SOURCE="HED">AGENCY:</HD>
National Highway Traffic Safety Administration (NHTSA).
<HD SOURCE="HED">ACTION:</HD>
Final rule.
<SUM>
<HD SOURCE="HED">SUMMARY:</HD>
NHTSA, on behalf of the Department of Transportation (DOT), is finalizing Corporate Average Fuel Economy (CAFE) standards for passenger cars and light trucks that increase at a rate of 2 percent per year for passenger cars in model years (MYs) 2027-31, 0 percent per year for light trucks in model years 2027-28, and 2 percent per year for light trucks in model years 2029-31. NHTSA is also finalizing fuel efficiency standards for heavy-duty pickup trucks and vans (HDPUVs) for model years 2030-32 that increase at a rate of 10 percent per year and model years 2033-35 that increase at a rate of 8 percent per year.
</SUM>
<EFFDATE>
<HD SOURCE="HED">DATES:</HD>
This rule is effective August 23, 2024.
</EFFDATE>
<HD SOURCE="HED">ADDRESSES:</HD>
For access to the dockets or to read background documents or comments received, please visit
<E T="03">https://www.regulations.gov</E>
, and/or Docket Management Facility, M-30, U.S. Department of Transportation, West Building, Ground Floor, Rm. W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. The Docket Management Facility is open between 9 a.m. and 4 p.m. Eastern time, Monday through Friday, except Federal holidays.
<FURINF>
<HD SOURCE="HED">FOR FURTHER INFORMATION CONTACT:</HD>
For technical and policy issues, Joseph Bayer, CAFE Program Division Chief, Office of Rulemaking, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, DC 20590; email:
<E T="03">joseph.bayer@dot.gov.</E>
For legal issues, Rebecca Schade, NHTSA Office of Chief Counsel, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, DC 20590; email:
<E T="03">rebecca.schade@dot.gov.</E>
</FURINF>
<SUPLINF>
<HD SOURCE="HED">SUPPLEMENTARY INFORMATION:</HD>
<HD SOURCE="HD1">Table of Acronyms and Abbreviations</HD>
<GPOTABLE COLS="2" OPTS="L2,nj,tp0,i1" CDEF="s50,r150">
<TTITLE> </TTITLE>
<CHED H="1">Abbreviation</CHED>
<CHED H="1">Term</CHED>
<ROW>
<ENT I="01">AAA</ENT>
<ENT>American Automobile Association.</ENT>
</ROW>
<ROW>
<ENT I="01">AALA</ENT>
<ENT>American Automotive Labeling Act.</ENT>
</ROW>
<ROW>
<ENT I="01">AAPC</ENT>
<ENT>The American Automotive Policy Council.</ENT>
</ROW>
<ROW>
<ENT I="01">ABT</ENT>
<ENT>Average, Banking, and Trading.</ENT>
</ROW>
<ROW>
<ENT I="01">AC</ENT>
<ENT>Air conditioning.</ENT>
</ROW>
<ROW>
<ENT I="01">ACC</ENT>
<ENT>Advanced Clean Cars.</ENT>
</ROW>
<ROW>
<ENT I="01">ACEEE</ENT>
<ENT>American Council for an Energy Efficient Economy.</ENT>
</ROW>
<ROW>
<ENT I="01">ACF</ENT>
<ENT>Advanced Clean Fleets.</ENT>
</ROW>
<ROW>
<ENT I="01">ACME</ENT>
<ENT>Adaptive Cylinder Management Engine.</ENT>
</ROW>
<ROW>
<ENT I="01">ACT</ENT>
<ENT>Advanced Clean Trucks.</ENT>
</ROW>
<ROW>
<ENT I="01">ADEAC</ENT>
<ENT>advanced cylinder deactivation.</ENT>
</ROW>
<ROW>
<ENT I="01">ADEACD</ENT>
<ENT>advanced cylinder deactivation on a dual overhead camshaft engine.</ENT>
</ROW>
<ROW>
<ENT I="01">ADEACS</ENT>
<ENT>advanced cylinder deactivation on a single overhead camshaft engine.</ENT>
</ROW>
<ROW>
<ENT I="01">ADSL</ENT>
<ENT>Advanced diesel engine.</ENT>
</ROW>
<ROW>
<ENT I="01">AEO</ENT>
<ENT>Annual Energy Outlook.</ENT>
</ROW>
<ROW>
<ENT I="01">AER</ENT>
<ENT>All-Electric Range.</ENT>
</ROW>
<ROW>
<ENT I="01">AERO</ENT>
<ENT>Aerodynamic improvements.</ENT>
</ROW>
<ROW>
<ENT I="01">AFV</ENT>
<ENT>Alternative fuel vehicle.</ENT>
</ROW>
<ROW>
<ENT I="01">AHSS</ENT>
<ENT>advanced high strength steel.</ENT>
</ROW>
<ROW>
<ENT I="01">AIS</ENT>
<ENT>Abbreviated Injury Scale.</ENT>
</ROW>
<ROW>
<ENT I="01">AMPC</ENT>
<ENT>Advanced Manufacturing Production Tax Credit.</ENT>
</ROW>
<ROW>
<ENT I="01">AMTL</ENT>
<ENT>Advanced Mobility Technology Laboratory.</ENT>
</ROW>
<ROW>
<ENT I="01">ANL</ENT>
<ENT>Argonne National Laboratory.</ENT>
</ROW>
<ROW>
<ENT I="01">ANSI</ENT>
<ENT>American National Standards Institute.</ENT>
</ROW>
<ROW>
<ENT I="01">APA</ENT>
<ENT>Administrative Procedure Act.</ENT>
</ROW>
<ROW>
<ENT I="01">AT</ENT>
<ENT>traditional automatic transmissions.</ENT>
</ROW>
<ROW>
<ENT I="01">AVE</ENT>
<ENT>Alliance for Vehicle Efficiency.</ENT>
</ROW>
<ROW>
<ENT I="01">AWD</ENT>
<ENT>All-Wheel Drive.</ENT>
</ROW>
<ROW>
<ENT I="01">BEA</ENT>
<ENT>Bureau of Economic Analysis.</ENT>
</ROW>
<ROW>
<ENT I="01">BEV</ENT>
<ENT>Battery electric vehicle.</ENT>
</ROW>
<ROW>
<ENT I="01">BGEPA</ENT>
<ENT>Bald and Golden Eagle Protection Act.</ENT>
</ROW>
<ROW>
<ENT I="01">BIL</ENT>
<ENT>Bipartisan Infrastructure Law.</ENT>
</ROW>
<ROW>
<ENT I="01">BISG</ENT>
<ENT>Belt Mounted integrated starter/generator.</ENT>
</ROW>
<ROW>
<ENT I="01">BMEP</ENT>
<ENT>Brake Mean Effective Pressure.</ENT>
</ROW>
<ROW>
<ENT I="01">BNEF</ENT>
<ENT>Bloomberg New Energy Finance.</ENT>
</ROW>
<ROW>
<ENT I="01">BPT</ENT>
<ENT>Benefit-Per-Ton.</ENT>
</ROW>
<ROW>
<ENT I="01">BSFC</ENT>
<ENT>Brake-Specific Fuel Consumption.</ENT>
</ROW>
<ROW>
<ENT I="01">BTW</ENT>
<ENT>Brake and Tire Wear.</ENT>
</ROW>
<ROW>
<ENT I="01">CAA</ENT>
<ENT>Clean Air Act.</ENT>
</ROW>
<ROW>
<ENT I="01">CAFE</ENT>
<ENT>Corporate Average Fuel Economy.</ENT>
</ROW>
<ROW>
<ENT I="01">CARB</ENT>
<ENT>California Air Resources Board.</ENT>
</ROW>
<ROW>
<ENT I="01">CBD</ENT>
<ENT>Center for Biological Diversity.</ENT>
</ROW>
<ROW>
<ENT I="01">CBI</ENT>
<ENT>Confidential Business Information.</ENT>
</ROW>
<ROW>
<ENT I="01">CEA</ENT>
<ENT>Center for Environmental Accountability.</ENT>
</ROW>
<ROW>
<ENT I="01">CEGR</ENT>
<ENT>Cooled Exhaust Gas Recirculation.</ENT>
</ROW>
<ROW>
<ENT I="01">CEQ</ENT>
<ENT>Council on Environmental Quality.</ENT>
</ROW>
<ROW>
<ENT I="01">CFR</ENT>
<ENT>Code of Federal Regulations.</ENT>
</ROW>
<ROW>
<ENT I="01">CH4</ENT>
<ENT>Methane.</ENT>
</ROW>
<ROW>
<ENT I="01">CI</ENT>
<ENT>Compression Ignition.</ENT>
</ROW>
<ROW>
<ENT I="01">CNG</ENT>
<ENT>Compressed Natural Gas.</ENT>
</ROW>
<ROW>
<ENT I="01">CO</ENT>
<ENT>Carbon Monoxide.</ENT>
</ROW>
<ROW>
<ENT I="01">CO2</ENT>
<ENT>Carbon Dioxide.</ENT>
</ROW>
<ROW>
<ENT I="01">COVID</ENT>
<ENT>Coronavirus disease of 2019.</ENT>
</ROW>
<ROW>
<ENT I="01">CPM</ENT>
<ENT>Cost Per Mile.</ENT>
</ROW>
<ROW>
<ENT I="01">CR</ENT>
<ENT>Compression Ratio.</ENT>
</ROW>
<ROW>
<ENT I="01">CRSS</ENT>
<ENT>Crash Report Sampling System.</ENT>
</ROW>
<ROW>
<ENT I="01">CUV</ENT>
<ENT>Crossover Utility Vehicle.</ENT>
</ROW>
<ROW>
<ENT I="01">CVC</ENT>
<ENT>Clean Vehicle Credit.</ENT>
</ROW>
<ROW>
<ENT I="01">CVT</ENT>
<ENT>Continuously Variable Transmissions.</ENT>
</ROW>
<ROW>
<ENT I="01">CY</ENT>
<ENT>Calendar year.</ENT>
</ROW>
<ROW>
<ENT I="01">CZMA</ENT>
<ENT>Coastal Zone Management Act.</ENT>
</ROW>
<ROW>
<ENT I="01">DCT</ENT>
<ENT>Dual Clutch Transmissions.</ENT>
</ROW>
<ROW>
<ENT I="01">DD</ENT>
<ENT>Direct Drive.</ENT>
</ROW>
<ROW>
<ENT I="01">DEAC</ENT>
<ENT>Cylinder Deactivation.</ENT>
</ROW>
<ROW>
<ENT I="01">DEIS</ENT>
<ENT>Draft Environmental Impact Statement.</ENT>
</ROW>
<ROW>
<ENT I="01">DFS</ENT>
<ENT>Dynamic Fleet Share.</ENT>
</ROW>
<ROW>
<ENT I="01">DMC</ENT>
<ENT>Direct Manufacturing Cost.</ENT>
</ROW>
<ROW>
<ENT I="01">DOE</ENT>
<ENT>Department of Energy.</ENT>
</ROW>
<ROW>
<ENT I="01">DOHC</ENT>
<ENT>Dual Overhead Camshaft.</ENT>
</ROW>
<ROW>
<ENT I="01">DOI</ENT>
<ENT>Department of the Interior.</ENT>
</ROW>
<ROW>
<ENT I="01">DOT</ENT>
<ENT>Department of Transportation.</ENT>
</ROW>
<ROW>
<ENT I="01">DPM</ENT>
<ENT>Diesel Particulate Matter.</ENT>
</ROW>
<ROW>
<ENT I="01">DR</ENT>
<ENT>Discount Rate.</ENT>
</ROW>
<ROW>
<ENT I="01">DSLI</ENT>
<ENT>Advanced diesel engine with improvements.</ENT>
</ROW>
<ROW>
<ENT I="01">DSLIAD</ENT>
<ENT>Advanced diesel engine with improvements and advanced cylinder deactivation.</ENT>
</ROW>
<ROW>
<ENT I="01">E.O.</ENT>
<ENT>Executive Order.</ENT>
</ROW>
<ROW>
<ENT I="01">EFR</ENT>
<ENT>Engine Friction Reduction.</ENT>
</ROW>
<ROW>
<ENT I="01">EIA</ENT>
<ENT>U.S. Energy Information Administration.</ENT>
</ROW>
<ROW>
<ENT I="01">EIS</ENT>
<ENT>Environmental Impact Statement.</ENT>
</ROW>
<ROW>
<ENT I="01">EISA</ENT>
<ENT>Energy Independence and Security Act.</ENT>
</ROW>
<ROW>
<ENT I="01">EJ</ENT>
<ENT>Environmental Justice.</ENT>
</ROW>
<ROW>
<ENT I="01">EPA</ENT>
<ENT>U.S. Environmental Protection Agency.</ENT>
</ROW>
<ROW>
<ENT I="01">EPCA</ENT>
<ENT>Energy Policy and Conservation Act.</ENT>
</ROW>
<ROW>
<ENT I="01">EPS</ENT>
<ENT>Electric Power Steering.</ENT>
</ROW>
<ROW>
<ENT I="01">ERF</ENT>
<ENT>effective radiative forcing.</ENT>
</ROW>
<ROW>
<ENT I="01">ESA</ENT>
<ENT>Endangered Species Act.</ENT>
</ROW>
<ROW>
<ENT I="01">ESS</ENT>
<ENT>Energy Storage System.</ENT>
</ROW>
<ROW>
<ENT I="01">ETDS</ENT>
<ENT>Electric Traction Drive System.</ENT>
</ROW>
<ROW>
<ENT I="01">EV</ENT>
<ENT>Electric Vehicle.</ENT>
</ROW>
<ROW>
<ENT I="01">FCC</ENT>
<ENT>Fuel Consumption Credits.</ENT>
</ROW>
<ROW>
<ENT I="01">FCEV</ENT>
<ENT>Fuel Cell Electric Vehicle.</ENT>
</ROW>
<ROW>
<ENT I="01">FCIV</ENT>
<ENT>Fuel Consumption Improvement Value.</ENT>
</ROW>
<ROW
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Preview showing 10k of 1981k characters.
Full document text is stored and available for version comparison.
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
This text is preserved for citation and comparison. View the official version for the authoritative text.