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We have redesigned and reorganized the Diesel Retrofit Technology Verification pages. The information on this page has moved to http://www.epa.gov/otaq/retrofit/contacts.htm. You will be taken to the new page in 5 seconds, or you may follow the link yourself.

For your convenience, please update your bookmarks or links to use the new url, http://www.epa.gov/otaq/retrofit/contacts.htm.

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
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