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CDTi Receives EPA Verification for Purifilter(R) EGR

VENTURA, Calif., Nov. 26, 2012 (GLOBE NEWSWIRE) -- Clean Diesel Technologies, Inc. (Nasdaq:CDTI) ("CDTi"), a cleantech emissions control company, is pleased to announce that it has received verification from the Environmental Protection Agency ("EPA") for its Purifilter® EGR emission reduction system. The uniquely designed Purifilter® EGR, featuring CDTi's proprietary MPC® technology, is a passively-regenerating diesel particulate filter that provides exceptional filtration and regeneration efficiency for the removal of particulate matter.

The Purifilter® EGR product addresses exhaust gas recirculation ("EGR") equipped heavy duty trucks currently subject to EPA retrofit requirements in the United States, excluding California. CDTi is well underway in a full verification process with the California Air Resources Board ("CARB") for verification in California. Purifilter® EGR is currently being sold and installed in California under an Executive Order pursuant to an After-Market Add-on Parts Exemption issued by CARB pending issuance of full and final verification.

"With EPA verification granted and CARB verification pending for this advanced EGR filter solution, CDTi can assist fleet managers nationwide in retrofitting their vehicles to meet the stringent EPA/CARB diesel reduction requirements," said Craig Breese, Chief Executive Officer of CDTi.

The CDTi logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=5742

CONTACT: Kristi Cushing, Investor Relations Manager Tel: +1 (805) 639-9555

Source:Clean Diesel Technologies, Inc.