August 31, 2010

MEMORANDUM

TO: EPA Docket #EPA-HQ-OAR-2009-0211

FROM: Robert Anderson, Environmental Protection Specialist,
EPA/OAR/OTAQ/CISD

RE: Preliminary Data from Tier DOE Catalyst Durability Program (V4/CRC
E-87-2)

Attached is an Excel spreadsheet that contains preliminary data from the
DOE Catalyst Durability Test Program also referred to as the DOE V4
program or the CRC E-87-2 program.  These data are preliminary results
for the Tier 2 vehicle portion of the test program.

The enclosed spreadsheet contains all data submitted to EPA from DOE as
of August 31, 2010.  It should be noted that these data are preliminary
and therefore, subject to change based on ongoing QA/QC.  Please read
the “readme” tab of the attached spreadsheet for more information
concerning the data.

For more information, please contact Robert Anderson at either  
HYPERLINK "mailto:anderson.robert@epa.gov"  anderson.robert@epa.gov  or
(202) 343-9718.

