How do I find out which DPFs are qualified for installation using Program funding?
Qualified diesel particulate filters that may be purchased and installed using Program funding are only those listed on the U.S. Environmental Protection Agency’s (EPA’s) verified retrofit technology list (http://www.epa.gov/otaq/retrofit/retroverifiedlist.htm) or the California Air Resources Board’s (CARB) level 3 verified retrofit technology list (http://www.arb.ca.gov/diesel/verdev/level3.htm). At present, the Engelhard DPX, the International DPX, the Johnson Matthey CRT, the Johnson Matthey CCRT,the Lubrizol Engine Control Systems Purifilter, the Donaldson DPM, the Cleaire Longview, and the Cleaire Horizon system diesel particulate filters are verified by either EPA or CARB for use with most 1994-2002 and some 2003 through 2006 model year school bus engines. Additional technologies will be added to the list of eligible technology for this Program once they are verified and added to the EPA or CARB lists. In addition, if a technology is deverified, it will be removed from those list
