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Welcome to the Michigan Air Emissions Reporting System (MAERS) - Michigan's web-based application used in the collection of emission data from the permitted sources/facilities. The Michigan Department of Environmental Quality (DEQ), Air Quality Division (AQD) maintains MAERS reports for commercial, industrial, and governmental sources of air pollution in Michigan. The MAERS System offers new ways to report Emissions Inventory (EI) 24-hours a day, seven days a week - all from a single website.

MAERS Internet Home Page

The MAERS Internet Home Page serves as a clearinghouse for MAERS information. This site provides an overview of the AQD, Emissions Reporting Program, up-to-date MAERS news, information on where to go for help, as well as access to all the MAERS Forms, Instructions, and other guidance documents. You can access the MAERS Home Page at

MAERS System Users Guide

The MAERS System Users Guide provides instructions on using the MAERS System under the Help Menu. You can also access the guide via the MAERS Home Page (see above).

As MAERS services continue to expand, the system will provide increasing opportunities to meet business needs through the ease and convenience of Michigan's online services.

If you have any questions, please contact the Environmental Assistance Program at (800) 662-9278.


Release Date:  May 23, 2018
Version:  1.0.6717.16951