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Midwest Clean Diesel Initiative
Serving Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin and 35 Tribes
Contact Us Search: All EPA This Area
Phone us at: 312-353-2000 or toll-free at: 800-621-8431 (the toll-free number only works in the Region 5 states: Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin)
Regular or certified mail address: Air and Radiation Division US EPA Region 5 77 West Jackson Boulevard (A-18J) Chicago, IL 60604
Please use the form below to send us comments or questions electronically.
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