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DOT/NHTSA RIN: 2127-AK79 Publication ID: 2012 
Title: Passenger Car and Light Truck Corporate Average Fuel Economy Standards MYs 2017 and Beyond 
Abstract: This rulemaking established Corporate Average Fuel Economy (CAFE) standards for light trucks and passenger cars for model years 2017 through 2021 and set augural standards for model year 2022 through 2025 vehicles. This rulemaking responds to requirements of the Energy Policy and Conservation Act, as amended by the Energy Independence and Security Act of 2007. The statute requires that CAFE standards be prescribed separately for passenger automobiles and non-passenger automobiles to achieve a combined fleet fuel economy of at least 35 mpg by model year 2020. For model years 2021 and beyond, the statute requires that the average fuel economy required to be attained by each fleet of passenger and non-passenger automobiles be the maximum feasible for each model year. The law requires the standards be set at least 18 months prior to the start of the model year. On May 21, 2010, President Obama issued a memorandum directing NHTSA and EPA to conduct a joint rulemaking (NHTSA regulating fuel economy and EPA regulating greenhouse gas emissions), and to issue a Notice of Intent to Issue a Proposed Rule (NOI) by September 30, 2010. NHTSA completed this objective, subsequently issuing a Notice of Proposed Rulemaking (NPRM) in November, 2011, and a Final Rule on August 28, 2012. The estimated total incremental cost for this program is $154B (2010 dollars), incremental benefits $630B (3% discount rate) and $503B (7% discount rate), and incremental net benefits $476B (3% discount rate) and $356B (7% discount rate). 
Agency: Department of Transportation(DOT)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Completed Actions 
Major: Yes  Unfunded Mandates: No 
CFR Citation: 49 CFR 533   
Legal Authority: 49 USC 32902    delegation of authority at 49 CFR 1.50   
Legal Deadline:
Action Source Description Date
Final  Statutory  Final Rule  04/01/2015 
Timetable:
Action Date FR Cite
NOI  10/13/2010  75 FR 62739   
NOI Comment Period End  10/31/2010 
Supplemental NOI  12/08/2010  75 FR 76337   
Supplemental NOI  08/09/2011  76 FR 48758   
NPRM  12/01/2011  76 FR 74854   
NPRM Comment Period Extended  01/13/2012 
NPRM Comment Period End  01/30/2012 
Second NPRM Comment Period End  02/13/2012 
Final Rule  10/15/2012  77 FR 62624   
Final Rule Correcting Amendment  10/18/2012  77 FR 64051   
Final Rule Effective  12/14/2012 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Energy Effects: Statement of Energy Effects planned as required by Executive Order 13211.  Included in the Regulatory Plan: No 
International Impacts: This regulatory action will be likely to have international trade and investment effects, or otherwise be of international interest.
RIN Information URL: www.regulations.gov   Public Comment URL: www.regulations.gov  
RIN Data Printed in the FR: No 
Related RINs: Duplicate of 2060-AQ54 
Agency Contact:
James Tamm
Fuel Economy Division Chief
Department of Transportation
National Highway Traffic Safety Administration
1200 New Jersey Avenue SE,
Washington, DC 20590
Phone:202 493-0515
Email: james.tamm@dot.gov