Clean Diesel Technologies (OTC:CDTI) +11.1% premarket after receiving EPA verification for its...

Clean Diesel Technologies (OTC:CDTI) +11.1% premarket after receiving EPA verification for its Purifilter EGR emission reduction system, a diesel filter for the removal of particulate matter. Purifilter EGR addresses exhaust gas recirculation equipped heavy duty trucks currently subject to EPA retrofit requirements in the U.S., excluding California.