We have redesigned and reorganized the Heavy-Duty Highway Diesel page (the "2007 Highway Rule"). This page has moved to http://www.epa.gov/otaq/highway-diesel/index.htm. You will be
taken to the new page in 10 seconds, or you can follow the link
yourself.
For your convenience, please update your bookmarks or links to use the new url, http://www.epa.gov/otaq/highway-diesel/index.htm.
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