The California Air Resources Board's Truck and Bus regulations begin January 1st, 2012 for on-highway trucks over 26,000 GVWR. Trucks 1996 to 1999 are will now be required to have a Level 3 verified Particulate Matter filter installed to be in compliance. Emissions Guru Inc. has been working with companies since 2009 establishing compliance paths with the least amount of impact on their organization. We search for exemptions, extensions, grant funding etc. to help fleet owners avoid costly retrofits.