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EPA/AR RIN: 2060-AP61 Publication ID: Spring 2011 
Title: Control of Greenhouse Gas Emissions From Medium and Heavy-Duty Vehicles 
Abstract: EPA plans to set national emissions standards under section 202 (a) of the Clean Air Act to control greenhouse gas (GHG) emissions from medium- and heavy-duty engines and vehicles, as part of a joint rulemaking with the National Highway Traffic Safety Administration (NHTSA). This joint rulemaking effort was announced by President Obama on May 21, 2010. EPA and NHTSA published a joint Notice of Proposed Rulemaking in the Federal Register on November 30, 2010 (75 FR 74152, November 30, 2010). This rulemaking would significantly reduce GHG emissions from future medium- and heavy-duty vehicles by setting GHG standards that would lead to the introduction of GHG-reducing vehicle and engine technologies. This action follows the U.S. Supreme Court decision in Massachusetts vs. EPA that greenhouse gases are air pollutants under the Clean Air Act, and that EPA therefore has a duty to determine, based solely on scientific considerations, whether that air pollution endangers public health or welfare. EPA has since determined that six greenhouse gases taken in combination endanger the public health and welfare and that the combined emissions from new motor vehicles and motor vehicle engines contribute to the greenhouse gas air pollution that endangers public health and welfare. This rulemaking also follows the Advance Notice of Proposed Rulemaking "Regulating Greenhouse Gas Emissions Under the Clean Air Act," (73 FR 44354, July 20, 2008). 
Agency: Environmental Protection Agency(EPA)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: Yes  Unfunded Mandates: Private Sector 
CFR Citation: 40 CFR 85 and 86    40 CFR 1   
Legal Authority: Clean Air Act sec 202   
Legal Deadline:  None
Action Date FR Cite
Notice - Public Meeting  11/01/2010  75 FR 67059   
NPRM  11/30/2010  75 FR 74152   
NPRM Comment Period End  01/31/2011    
Final Action  08/00/2011    
Additional Information: EPA publication information: Notice - Public Meeting -; EPA Docket information: EPA-HQ-OAR-2010-0162
Regulatory Flexibility Analysis Required: No  Government Levels Affected: Federal 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:  
Sectors Affected: 336111 Automobile Manufacturing; 336112 Light Truck and Utility Vehicle Manufacturing; 336120 Heavy Duty Truck Manufacturing; 454312 Liquefied Petroleum Gas (Bottled Gas) Dealers; 541690 Other Scientific and Technical Consulting Services; 811112 Automotive Exhaust System Repair; 811198 All Other Automotive Repair and Maintenance 
RIN Data Printed in the FR: No 
Agency Contact:
Byron Bunker
Environmental Protection Agency
Air and Radiation
Ann Arbor, MI 48105
Phone:734 214-4155

Angela Cullen
Environmental Protection Agency
Air and Radiation
Ann Arbor, MI 48105
Phone:734 214-4419