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EPA/AR RIN: 2060-AN01 Publication ID: Fall 2008 
Title: Component Durability Procedures for New Light Duty Vehicles, Light Duty Trucks, and Heavy Duty Vehicles 
Abstract: On October 22, 2002, the United States Court of Appeals for the District of Columbia Circuit vacated durability provisions that automotive manufacturers used to demonstrate that the emissions of their vehicles would comply with emission standards for the useful lives of those vehicles. The Court also required EPA to issue new regulations. This action fulfills the mandate. The new durability regulations will include options that a manufacturer may choose from to age pre-production vehicles to determine the rate of emission deterioration over the vehicle's useful life. The options will include a prescribed fixed driving cycle and a prescribed bench aging cycle that are used to age prototype vehicles or emission control components to the equivalent of the useful life period of the vehicle in a manner that replicates the aging that the vehicle or components would see in actual use. This rule does not change the federal emission standards or the test procedures used to quantify emissions. Although there is no court-ordered deadline, this is a court-ordered action. During the comment period of the NPRM the Agency received a comment from the Afton Chemical Corporation ("formally known as Ethyl Corporation ) suggesting that EPA did not address the component durability portion of the new vehicle emission certification process and should establish a procedure for rulemaking requesting comment on whether our current component durability process is appropriate or if we should revise the process to include a limited amount of testing. 
Agency: Environmental Protection Agency(EPA)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 86   
Legal Authority: 42 USC 7521   
Legal Deadline:  None
Timetable:
Action Date FR Cite
Supplemental 2 NPRM  01/17/2006  71 FR 2843   
Final Action  01/00/2010    
Additional Information: SAN No. 4757.1; Split from RIN 2060-AK76.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
David Good
Environmental Protection Agency
Air and Radiation
AAPTIG,
Ann Arbor, MI 48105
Phone:734 214-4450
Email: Good.David@epamail.epa.gov