The Wyoming Department of Environmental Quality (DEQ)
Air Quality Division
Air Quality Advisory Board Meeting

The Wyoming Air Quality Advisory Board (Board) will meet on July 23, 2024 at 1:00 PM. The meeting will be held both as a virtual public meeting and in person at 200 W. 17^th St., Cheyenne, WY, 2nd Floor, Room 211. To attend the meeting remotely, please click the following Zoom link: https://deq-wyoming-gov.zoom.us/j/84887722267?pwd=uUyKeawBlqZL72U1PEZwgf9mnX0Yor.1.

The Air Quality Division (Division) is requesting the Board’s consideration on proposed changes to the following Wyoming Air Quality Standards and Regulations (WAQSR):

• Chapter 2 Ambient Standards
• Chapter 3 General Emissions Standards
• Chapter 4 State Performance Standards for Specific Existing Sources
• Chapter 5 National Emission Standards
• Chapter 6 Permitting Requirements
• Chapter 8 Nonattainment Area Regulations
• Chapter 11 National Acid Rain Program
• Chapter 14 Emission Trading Program Regulations

The proposed rulemaking involves:

• Revising the Incorporation by Reference (IBR) sections in the aforementioned chapters of the WAQSR to incorporate all Code of Federal Regulations citations as of July 1, 2024.
• Revising Chapter 2, Section 2, Ambient Standards for Particulate Matter, to update the PM2.5 primary annual standard in so that it reflects the new 2024 PM2.5 National Ambient Air Quality Standards (NAAQS)..
• Revising Chapter 5, Section 2, New Source Performance Standards, to add 40 CFR Part 60, subpart UU (Standards for Performance for Asphalt Processing and Asphalt Roofing Manufacture) and 40 CFR Part 60, subpart OOOOb, Standards of Performance for Crude Oil and Natural Gas Facilities for Which Construction Modification or Reconstruction Commenced After December 6, 2022.
• Revising Chapter 6, Section 3, Operating permits, to remove Title V Affirmative Defense provisions from subsection (l) per a U.S. Court of Appeals for the D.C. Circuit ruling.
• Revising Chapter 6, Section 4, Prevention of significant deterioration, to remove PM2.5 Significant Impact Levels from subsection (b)(i)(A)(I)(1.).
• Revising Chapter 6, Section 14, Incorporation by reference, to match the language of other IBR sections in the WAQSR that were updated previously in 2024.
• Making two minor, non-substantive typographical revisions in Chapter 3 and Chapter 14.

The proposed revisions to Chapter 2, Section 12, Chapter 3, Section 9, Chapter 6, Section 14, and Chapter 8, Section 10  involve changes to the Wyoming State Implementation Plan (SIP). The Division will submit these SIP revisions to the Environmental Protection Agency.

The Division will also provide the Board with general updates on current activities and topics pertaining to air quality.

The public is invited and may comment on all matters during the Board meeting. All oral comments made during the meeting will become part of the administrative record.  Written comments will also become part of the administrative record if they are signed by the commenter and submitted to Nancy Vehr, Administrator, DEQ Air Quality Division, 200 W. 17^th St., Cheyenne, Wyoming, 82002, or faxed to 307-635-1784 by 5 p.m. (MST) on July 23, 2024. Electronic comments may only be submitted by filling out the public comment form provided at:

https://aq.wyomingdeq.commentinput.com/. Email comments will not be accepted.  

Copies of the agenda, public notice, and proposed rule changes are available for public inspection at the DEQ, Air Quality Division, 200 W. 17^th St., Cheyenne, Wyoming, 82002, or electronically at: https://deq.wyoming.gov/aqd/rule-development/proposed-rules-and-regulations/. Para español, visite https://deq.wyoming.gov

If you have questions regarding the meeting or to request a hard copy of any of the materials, please contact Mike Morris at 307-777-2068. For additional information, please contact Nancy Vehr, Administrator, Air Quality Division, at 307-777-7391.

In accordance with the Americans with Disabilities Act, special assistance or alternative formats will be made available upon request for individuals with disabilities.

View in Español

Hot New Topic:      State of the Environment - DEQ's Podcast

Wyoming Department of Environmental Quality  | view as a webpage