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This Topic Area provides information on all issues related to air quality considerations in the NEPA process. This includes project level air quality conformity, analysis of mobile source air toxics (MSAT) and green house gases. To a lesser degree, information related to the air quality conformity process in transportation planning will be included. For additional information be sure to visit FHWA's Air Quality Website: www.fhwa.dot.gov/environment/aqupdate/index.htm
For additional information be sure to visit FHWA's Air Quality Website: www.fhwa.dot.gov/environment/aqupdate/index.htm