UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

 National Vehicle and Fuel Emissions Laboratory

                              2565 Plymouth Road

                    Ann Arbor, Michigan 48105-2498

											OFFICE OF

										      AIR AND RADIATION

September 29, 2008

MEMORANDUM

FROM:  	Todd Sherwood

Assessment and Standards Division, US EPA

TO:	   	Docket ID No. EPA-HQ-OAR-2005-0047

SUBJECT:	HDOBD Meetings with Caterpillar

Meeting Date

EPA staff met with representatives of Caterpillar on April 28, 2008.

EPA Attendees

EPA staff in attendance at the meeting were:

Todd Sherwood 

Brian Nelson 

Caterpillar Attendees

Caterpillar representatives in attendance at the meeting were:

George Lin

Gordon Gerber

Lonny Johnson

Brian Mann

Thomas Crowell

Mike Mikos

Chris Reiser

Vinod Polina

Vipul Patel

Topics Discussed

Topics discussed at this meeting were:

Status of EPA’s final rule

Status of development of Caterpillar’s HDOBD monitors

Meeting Date

EPA staff met with representatives of Caterpillar on June 10, 2008.

EPA Attendees

EPA staff in attendance at the meeting were:

Todd Sherwood 

Anthony Neam

Hugh Harris 

Jason Gumbs

Caterpillar Attendees

Caterpillar representatives in attendance at the meeting were:

George Lin 

Anthony Rodman 

Yanchai Zhang 

Vinod Polina 

David Kapparos

Topics Discussed

Topics discussed at this meeting were:

Status of development of Caterpillar’s HDOBD monitors, in particular,
the DPF monitor trapping efficiency and NMHC conversion efficiency.

 Some of these attendees may be contract employees and not actual
Caterpillar employees.

 Some of these attendees may be contract employees and not actual
Caterpillar employees.

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