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Proposed Rules and Regulations

Air Enforcement Actions

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Ownership Change Forms

Did you know that Ownership Change Forms should be filled out when facility acquisitions occur and/or company name changes take place? The Air Quality Division has attached the Change of Ownership Forms for Minor Sources and Title V Facilities below for your convenience. These forms need to be completed and mailed to the following address:

ATTN: Planning Section

Wyoming DEQ - Air Quality Division
200 W 17th St, Ste 300
Third Floor
Cheyenne, WY 82002

It is important to submit completed ownership changes in a timely manner as IMPACT portal users will not have access to newly-acquired facilities until the completed forms are received and processed.

If you have any questions about ownership changes, please feel free to email deq-air-impact@wyo.gov or contact a staff member by phone at 307-777-7391.

Below are forms associated with ownership change.

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Search Air Quality Forms

Search all Air Quality webpage forms and documents below.

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Rules and Regulations

All official Wyoming State Rules and Regulations are kept at the Wyoming Secretary of State’s Office. Click here to view all current Rules and Regulations.

Back-Air

Proposed Rules and Regulations

This page contains any proposed Rules or Regulations that are currently under development within the Air Quality Division.

The Air Quality Division proposed Rules and Regulations, State Implementation Plans, Air Quality Advisory Board Meetings, and the associated Public Notices may be found in the files below. If you have questions regarding any of the materials, please contact Amber Potts at 307-777-2489.

Current Proposed Rules and Regulations
Current Proposed Rules and Regulations

The Wyoming Environmental Quality Council (EQC) will consider proposed changes to the Wyoming Air Quality Standards and Regulations (WAQSR) brought forth by the Wyoming Department of Environmental Quality (WDEQ) Air Quality Division (AQD) at a public hearing to be held at 9:00 a.m. on March 27, 2024, at the Turntable Room of the Thyra Thomson State Office Building, 444 W. Collins Drive, Casper, WY 82601. Individuals interested in attending the video conference may contact Joe Girardin at (307) 777-7170 or joe.girardin@wyo.gov for assistance.

The proposed rulemaking Docket # 23-2101 (R-35) involves revising WAQSR Chapter 2, Ambient Standards, Chapter 3, General Emission Standards, Chapter 4, State Performance Standards for Specific Existing Sources, Chapter 5, National Emission Standards, Chapter 8, Nonattainment Area Regulations, Chapter 11, National Acid Rain Program, Chapter 14, Emission Trading Program Regulations.

For complete information on the proposed rulemaking package, how to submit comments, etc., please see the Public Notice PDF file in the download table below. 

The Air Quality Division proposed Rules and Regulations, State Implementation Plans, Air Quality Advisory Board Meetings, and the associated Public Notices may be found in the files below. If you have questions regarding any of the materials, please contact Amber Potts at 307-777-2489.

Rule Development Process
Rule Development Process

Rule development involves a process that allows for input from the public and other stakeholders. After a Proposed Rule is developed internally by DEQ/AQD, it must undergo review by both the Wyoming Air Quality Advisory Board and the Environmental Quality Council – the public is given an opportunity to comment on the Proposed Rule prior to each stage – before it can become a State Rule. The Proposed Rule is also reviewed by the Attorney General, Legislative Services Office, and the Governor’s Office before it reaches the Secretary of State’s Office and becomes a State Rule.   

To see an illustrated flowchart of the AQD’s rulemaking process, you can access a .PDF file from the downloader below.     

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