Proposed Rules and Regulations

The Wyoming Air Quality Advisory Board will meet on December 8, 2016 at 9:00 a.m., in the Techroom Basement, of the Department of Environmental Quality – Sheridan Office, 2100 West 5th Street, Sheridan, WY 82801.  The Air Quality Division (Division) is requesting the Board’s consideration to review the State of Wyoming’s Request for Redesignation and Limited Maintenance Plan for the Attainment in the Particulate Matter (PM10) Moderate Nonattainment Area in the City of Sheridan, in Sheridan County, Wyoming.  Upon review and completion of a finalized draft, the Request for Redesignation will be submitted to the Environmental Protection Agency (EPA).

The document supports the State of Wyoming’s request that the City of Sheridan be redesignated from nonattainment to attainment of the particulate matter (PM10) standard.  The nonattainment area (NAA) has recorded over 25 years of ambient air quality monitoring data (including five (5) years of quality assured ambient air quality monitoring data for the years 2011-2015, which represents the most recent years of quality assured data at the time of submission) demonstrating attainment with the PM10 standard. 

The public is invited to attend the meeting and may comment on all matters before the Board. All oral comments made during the meeting, and signed comments hand-delivered to Nancy Vehr at 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/AQD, 200 West 17th Street, Cheyenne, Wyoming, 82002, or faxed to 307-365-1784, by the close of the meeting on December 8, 2016.  Electronic comments may only be submitted by filling out the public comment form provided at: Electronic comments that are not submitted through the DEQ comment portal provided above will not be included in the administrative record.  Copies of the agenda, public notice, and the proposed regulations are available for public inspection at the Department of Environmental Quality, Air Quality Division, 200 West 17th Street, Cheyenne, Wyoming, 82002.  Electronic copies will be available after November 18, 2016, at  



The Wyoming Environmental Quality Council (EQC) will consider proposed revisions to Wyoming Department of Environmental Quality (WDEQ) Rules of Practice and Procedure at a public hearing to be held on January 19, 2017 in Room 171, the Elk Room, of the Game and Fish Department, 5400 Bishop Boulevard, Cheyenne, Wyoming, commencing at 9:00 a.m. (MST).  Comments on the proposed revisions may be submitted through December 23, 2016.  Written comments should be sent to the Wyoming Department of Environmental Quality, 200 W. 17th St., Cheyenne, Wyoming 82002 or faxed to (307) 635-1784.  Electronic comments may only be submitted through and accepted by WDEQ comment portal provided at:  The WDEQ will file an Analysis of Comments with the EQC prior to the January 19, 2017 public hearing.  Additional information is posted on the EQC website at under the Docket #16-1101.

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


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