Clean Diesel Technologies, Inc. manufactures and distributes light duty vehicle catalysts and heavy duty diesel emissions control systems and products to automakers, distributors, integrators, and retrofitters in the United States, Canada, Sweden, and the United Kingdom. It operates through two divisions, Catalyst and Heavy Duty Diesel Systems. The Catalyst division develops and produces catalysts to reduce emissions from gasoline, diesel, and natural gas combustion engines. This division s products include catalysts for gasoline and diesel engines, as well as for energy applications. The Heavy Duty Diesel Systems division designs and manufactures exhaust emissions control solutions for a range of heavy duty diesel applications. This division s products comprise DuraFit original equipment manufacturer (OEM) replacement diesel particulate filters, diesel oxidation catalysts, and products for the verified retrofit and non-retrofit OEM markets; and Purifilter exhaust gas recirculation diesel particulate filter systems. The company markets and sells its products through a network of dealers and distributors, as well as directly to OEMs. Clean Diesel Technologies, Inc. was founded in 1996 and is headquartered in Oxnard, California.