Proposed Rules and Regulations

The Wyoming Department of Environmental Quality/Air Quality Division (AQD) will hold an infrastructure State Implementation Plan (SIP) hearing on June 6, 2016 at 1:00 PM, at the Herschler Building, Room 1699, 122 West 25th Street, Cheyenne, Wyoming.  For more information on this hearing, and to review the I-SIP, please see the files in the downloader below. 

Wyoming Department of Environmental Quality General Rules of Practice and Procedure:  Chapter 1, General Provisions has been revised through the statutory rulemaking process, and changes became state-effective on April 21, 2016. The revised chapter can be accessed electronically at

If you have any questions on the status of any rulemakings, please contact Amber Potts at 307-777-2489 or


File Date