UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL VEHICLE AND FUEL EMISSIONS LABORATORY

2565 PLYMOUTH ROAD

ANN ARBOR, MICHIGAN 48105-2498

OFFICE OF

AIR AND RADIATION

                                                                        
          	     

MEMORANDUM

SUBJECT:	Heavy-Duty Hybrid Onboard Diagnostics

FROM:		Amy Kopin

TO:		The Docket

DATE:		July 15, 2011

	

	On June 8th, 2011 we held a conference call with the Eaton to discuss
concerns raised by Eaton regarding heavy-duty onboard diagnostic (OBD)
requirements and timing. Specifically, they have requested a delay of
the application of HD OBD requirements for hybrid applications until
2020.  Concerns were raised concerns during the comment period for the
heavy-duty greenhouse gas notice of proposed rulemaking that heavy-duty
hybrid applications may not be able to meet the 2013 heavy-duty OBD
regulations that were published in the 2009 OBD Final Rulemaking., 
Attendees from the EPA and Eaton are shown in the table below.

 Attendee 	Affiliation 

Cleophas Jackson 	EPA – Compliance and Innovative Strategies Division 

Anthony Neam 	EPA – Assessment and Standards Division 

Amy Kopin 	EPA – Assessment and Standards Division 

Ian McKenzie	Eaton



 U.S. EPA, NHTSA, and DOT, “Greenhouse Gas Emission Standards and Fuel
Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles,”
republished December 29, 2010.  Available here: 
http://origin.www.gpo.gov/fdsys/pkg/FR-2010-12-29/html/2010-32726.htm

 U.S. EPA, “Control of Air Pollution from New Motor Vehicles and New
Motor Vehicles Engines; Final Rule Regulations Requiring Onboard
Diagnostic Systems on 2010 and Later Heavy-Duty Engines Used in Highway
Applications Over 14,000 Pounds; Revisions to Onboard Diagnostic
Requirements for Diesel Highway Heavy-Duty Vehicles Under 14,000
Pounds,” published February 24, 2009.  Available here:
http://www.epa.gov/otaq/regs/im/obd/regtech/hd-obd-frm-02-24-09-notice-7
4-fr-8310.pdf

