The CDCH℠* is a trusted, web-based tool that enables users to determine the best available emission reduction technology (BAT), including verified products (and other product options allowed by specific program requirements) for retrofitting diesel-powered vehicles and equipment. The CDCH can be used to support retrofit products, clean fuel options and clean fuel vehicle selections that satisfy BAT regulations, as well as voluntary emission reduction program requirements.
*Clean Diesel ClearingHouse and CDCH are Service Marks of Emissions Advantage, Inc.
The CDCH can search for retrofit technologies that are available for a wide range of diesel-powered on-road and nonroad equipment, as listed below.
Currently supported vehicle and equipment applications include:
Users without an account can take advantage of the