CDTi Receives EPA Verification for Purifilter(R) EGR

CDTi Receives EPA Verification for Purifilter(R) EGR

CARB Verification in Progress

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

"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

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

CDTi Logo
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