California Air Resources Board

Note: Verifications are issued chronologically. The most recently issued Executive Order or individual attachment is the one which is currently in effect and is listed below each manufacturer’s verification. The most recent Executive Order supersedes any previous Executive Orders for the same product. Should you wish to view any previous Executive Orders or attachments for reference purposes related to a manufacturer’s verification, please view the associated link below each description.

CARB has verified ESW Technologies, ThermaCat^TMe diesel retrofit system for certain 1994 through 2009 model year heavy-duty diesel, exhaust gas recirculation equipped engines used in on-road vehicles. The ThermaCat^TMe system reduces emissions of diesel particulate matter by at least 85 percent and is designated as a Level 3 plus system. The primary components of the actively regenerated ThermaCat^TMe system include a silicon carbide wall-flow filter, a diesel oxidation catalyst and a system controller. The ThermaCat^TMe system is compatible with on-road vehicles using diesel fuel that contains up to 20 percent biodiesel. Specific conditions for which the ThermaCat^TMe system has been approved may be found in the Executive Order below.