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Air Regulations, Policies and Guidance Public Notices

Public hearing, meeting and comment information related to air regulations, policies and guidance for the Air Management Program is available here.

Upcoming Public Hearings, Meetings and Notices

Date and TimeLocationSubjectContact(s)Additional Information
Dec. 2, 2024
2:00 p.m.
Online Zoom Meeting

Meeting ID:
821 0226 0636

One tap mobile
+1 312 626 6799 US (Chicago)
Microsoft Corporation Data Center Construction (24-MIN-238) and Operation Permit (25230249A-F03) Public HearingDave MinkeyMicrosoft Mount Pleasant Data Centers, located at 4800 90th Street, Mount Pleasant, Racine County, Wisconsin, FID 252302490, submitted to the Department of Natural Resources (DNR) a permit application, including plans and specifications for construction of six (6) data centers and revision of permit conditions for two (2) data centers, and revision of operation permit 25230249A-F02. More information can be found in the public notice.

Public Comment Period

Date and TimeCommentsSubjectContact(s)Additional Information
Oct. 1, 2024 – Oct. 31, 2024

Comments may be sent by U.S. mail to the following address:

Department of Natural Resources
Attn. Emma Cleveland – AM/7
P.O. Box 7921
101 S. Webster Street
Madison, WI 53707-7921

Or emailed to Emma Cleveland at Emma.Cleveland@wisconsin.gov

Exceptional Events Demonstration Public Comment PeriodIf you have any questions regarding this submittal, please contact Brianna Denk

Pursuant to the Environmental Protection Agency’s (EPA) 2016 Exceptional Events Rule, the Wisconsin Department of Natural Resources (DNR) has prepared an exceptional events demonstration for the wildfire smoke event from June 26-30, 2024, that resulted in regulatorily significant impacts in the Southeast region of Wisconsin at the Milwaukee 16th St. and Waukesha Cleveland Ave. monitors. Upon U.S. Environmental Protection Agency (EPA) concurrence with this demonstration, the EPA will exclude data from this event when making regulatory decisions related to the Milwaukee 16th St. and Waukesha Cleveland Ave. monitors. The DNR will hold a public comment period on the exceptional events demonstration from Oct. 1 – Oct. 31, 2024.

Guidance in Public Comment

There is currently no guidance in public comment.

Publishing procedures

2011 Wisconsin Act 167 [exit DNR] went into effect on Aug. 1, 2012. This act requires the DNR to post hearing and permit notices on the department's website, in addition to newspapers. The date of posting on the DNR website now determines when the public comment periods end. If you have any questions about how this affects public comment opportunities, please contact Kristin Hart.