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 21, 2011

	On June 23rd, 2011 we held a conference call with the Hybrid
Manufacturers Regulatory Collaboration (HMRC) to discuss concerns raised
by members of the HMRC regarding heavy-duty onboard diagnostic (OBD)
requirements and timing.  Concerns were raised 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.,  Specifically, they have requested a delay of the
application of HD OBD requirements for hybrid applications until 2020. 
Attendees from the EPA and HMRC are shown 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

Barbara Chance	Allison Transmission

Kevin Rodgers	Allison Transmission

Rob Merrion	Allison Transmission

Steve Spurlin	Allison Transmission

Justin Owens	Allison Transmission

Ian McKenzie	Eaton Corporation

Tom Apalenek	BAE Systems

Derek Matthews	BAE Systems

Dan Butler	BAE Systems

Doug Thrall	BAE Systems

Jim Lyons	Sierra Research



 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

