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Please help us answer your request by including a correct e-mail address. We have answered thousands of requests, but we receive many messages that we can't respond to because of incorrect email addresses. Also, if you are referring to a specific page within EPA's web site, please include a URL or title for the site. If your browser doesn't support forms, you can e-mail your comment to us at see.stephen@epa.gov.
phone

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)
mail

Regular or certified mail address:
Air and Radiation Division
US EPA Region 5
77 West Jackson Boulevard (A-18J)
Chicago, IL 60604

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