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 25, 2011

	

	On July 20th, 2011 we held a conference call with Odyne Systems, LLC to
discuss concerns raised by hybrid manufacturers regarding heavy-duty
onboard diagnostic (OBD) requirements and timing. Hybrid manufacturers,
engine manufacturers, and industry trade groups 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 Odyne are shown in the
table below.  

Attendee 	Affiliation 

Cleophas Jackson 	EPA

Anthony Neam 	EPA

Amy Kopin 	EPA

Joe Dalum	Odyne

Dr. Phillip Eidler	Odyne

Bill Mammen	Odyne



 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

