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Automobile sulfuric acid emission control - the development status as of December 1975 : a report to

United States. Environmental Protection Agency. Office of Mobile Source Air Pollution Control. Emission Control Technology Division, author.
Washington, D.C. : United States Environmental Protection Agency, December 1975. 1976-

Automobiles and ozone.

[Ann Arbor, MI] : U.S. Environmental Protection Agency, Office of Mobile Sources, 1993. 1993

Exhaust and crankcase emission factors for nonroad engine modeling : compression-ignition

United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division, author.
[Washington, D.C.] : United States Environmental Protection Agency, 2010. 2010

IM OBD vehicles readiness exception list

[Washington, D.C.] : U.S. Environmental Protection Agency, Office of Transportation and Air Quality, [2008] 2008

OBD readiness testability issues

[Washington, D.C.] : Transportation and Climate Division, Office of Transportation and Air Quality, U.S. Environmental Protection Agency, [2012] 2012

Safety notice for the Donaldson DFM diesel multi-stage filter

[Washington, D.C.] : U.S. Environmental Protection Agency, Office of Transportation and Air Quality, [2010] 2010

Supplemental guidance for I/M programs.

[Ann Arbor, Mich.?] : Emission Planning and Strategies Division, Office of Mobile Sources, Office of Air and Radiation, U.S. Environmental Protection Agency, 1994. 1994