Applications - Diesel Retrofit

Johnson Matthey has worked closely with both the US Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) to verify JM products. In fact, Johnson Matthey’s CRT^® technology was the first filter to be verified, by the EPA and by CARB. Since then JM has been working diligently to verify more technologies for a broader variety of engines and applications.

The EPA recently verified Johnson Matthey’s CCRT® filter for more challenging and colder applications, as well as the DCC™ diesel oxidation catalyst. CARB has also extended JM's CRT^® and CCRT^® technology verifications.

In April 2005, Johnson Matthey's first NOx reduction technology was approved by CARB. In addition to a 40% NOx reduction, the EGRT® technology also reduces PM by over 85%.

JM EPA Verification Details

JM CARB Verification Details

To streamline the verification process, in June 2004, CARB and EPA signed a Memorandum of Agreement (MOA) for the Coordination of Diesel Retrofit Verification. This MOA establishes reciprocity in verifications of hardware or device-based retrofits and commits CARB and EPA to work toward accepting particulate matter (PM) and oxides of nitrogen (NOx) verification levels assigned by the other's verification programs. In the near future CARB and EPA will provide further guidance on how this agreement will be implemented. The full text of the Memorandum of Agreement can be found at http://www.arb.ca.gov/diesel/verdev/epamoa.pdf.

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