The California Air Resources Board (ARB) has transferred the verification of the Cleaire Advanced Emission Controls, LLC (Cleaire) Longview diesel particulate filter (DFP) system to ESW CleanTech, Incorporated (ESW CleanTech). Cleaire ceased operations abruptly on Jan. 18.

ESW CleanTech acquired the Cleaire product line on April 18, completed all the verification transfer requirements specified in the Verification Procedure, Warranty, and In-use Compliance Requirements for In-Use Strategies to Control Emissions from Diesel Engines, Title 13, California Code of Regulations, and will sell new systems as well as provide support for existing Cleaire customers. 

The Longview system reduces emissions of diesel particulate matter by at least 85% (Level 3 Plus) and oxides of nitrogen by at least 25% (Mark 1), according to ARB. The system is compatible with on-road vehicles using diesel fuel that contains up to 20% biodiesel.

**Update 6/19/13: The ARB has also transferred verification of the Cleaire Vista DPF system to ESW CleanTech, ARB announced June 18. Cleaire will sell new Vista systems as well as provide support to existing Cleaire customers. For more information, visit the ARB site.