Clean Diesel Technologies, Inc. is a cleantech emissions control company that designs, develops and manufactures sustainable solutions to reduce emissions of on- and off-road engine applications. Its business is driven by increasingly stringent global emission standards for internal combustion engines, which are major sources of a variety of harmful pollutants. The company operates through two divisions: Heavy Duty Diesel Systems and Catalyst. The Heavy Duty Diesel Systems division designs and manufacturers verified exhaust emissions control solutions. It offers products for the verified retrofit and original equipment manufacturer. The Catalyst division produces catalyst formulations to reduce emissions from gasoline, diesel, and natural gas combustion engines. Clean Diesel Technologies was founded in 1994 and is headquartered in Oxnard, CA.