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 April 28th, 2011 we held a conference call with the California Air
Resources Board (CARB) to discuss concerns raised by hybrid
manufacturers, engine manufacturers, and related industry trade groups
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,
their comments include a request for a delay of the application of HD
OBD requirements for hybrid applications until 2020.  Attendees from the
EPA and CARB 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 

Lucina Negrete	CARB

Jack Kitowski	CARB

Michael McCarthy	CARB

Joe Calavita	CARB

Jessica Dean	CARB

Michael Regenfuss	CARB

Ajay Chaudhary	CARB



 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

