Notice of Proposed Rulemaking Before 

The Environmental Quality Council 

By the Department of Environmental Quality 

Air Quality Division (AQD) 

The Environmental Quality Council (EQC) will hold a public hearing beginning at 9:00AM on October 5, 2012. 

The hearing will be held at the Herschler Building, Conference Room B63, 122 W. 25th Street, Cheyenne, 

Wyoming. 

The Wyoming Department of Environmental Quality, Air Quality Division (AQD or Division), will be bringing two 

proposed rulemakings before the EQC. The first proposed rulemaking will involve revising Wyoming Air Quality 

Standards and Regulations (WAQSR) Chapter 1, Common Provisions, Chapter 6, Permitting Requirements, and 

Chapter 7, Monitoring Regulations. Modifications to these chapters incorporate language that will allow the State to 

permit for greenhouse gases. In addition, these changes are proposed to be consistent with the requirements 

established in the current Federal Implementation Plan (FIP). Chapter 1, Sections 3 and 7, and Chapter 6, Sections 4 

and 14, involve changes to the State Implementation Plan (SIP) to satisfY Clean Air Act (CAA) Sections 101, 114, 

116, 301 and 307(d)(7)(B). After authorized in accordance with the 2012 State of Wyoming, Enrolled Act No. 16 

(Senate File 0086), the AQD will submit these SIP changes to the Environmental Protection Agency (EPA) with the 

goal of replacing the current Greenhouse Gas FIP with a SIP. 

The second proposed rulemaking will involve revising WAQSR Chapter 2, Ambient Standards, Chapter 3, General 

Emission Standards, Chapter 5, National Emission Standards, and Chapter 8, Nonattainment Area Regulations. 

Revisions to Chapter 2 consist of updating the ambient N02, S02, and ozone standards to be consistent with current 

federal regulations. Chapter 3, Section 4, Emission standards for sulfur oxides, is being repealed and superseded by 

more updated regulations. Changes to Chapter 5 involve the removal of the vacated version of 40 CFR part 63, 

Subpart DDDDD (Boiler MACT) from Section 3. Chapter 8, Section 3, Conformity of general federal actions to 

state implementation plans, is being revised to maintain consistency with the federal general conformity regulations. 

Chapter 2, Sections 3, 4, 6 and 12, Chapter 3, Sections 4 and 9, and Chapter 8, Sections 3 and 5, involve changes to 

the SIP to satisfy CAA Sections 108, 109, 110 and 176. The AQD will submit these SIP changes to the EPA. 

The notice for submitting written comments on the WDEQ/AQD proposed revisions was first published on August 

I, 2012. The written comment period will close on September 17,2012. Written comments will also become a part 

of the public record ifthel are signed by the commenter and submitted to Administrator, WDEQ/AQD, Herschler 

Building 2-E, 122 W. 25 Street, Cheyenne, Wyoming, 82002, or faxed to 307-777-5616. Copies of the public 

notice and the proposed rules are available for public inspection at the Department of Environmental Quality, Air 

Quality Division, Herschler Building, 2"d Floor, 122 W. 25th Street, Cheyenne, Wyoming. Electronic copies are 

available at http://dcg.statc.wv.us/aqd/index.asp and the EQC website stated below. If you have questions regarding 

the proposed rules, contact Christine Anderson, Air Quality Division, at 307-675-5624. 

The WDEQ/AQD will file an analysis of the comments received. The EQC has scheduled the public hearing on 

October 5, 2012. The EQC will consider the proposed rules, written comments, and the analysis of comments, along 

with any modifications proposed by the WDEQ/AQD to the draft rules. At the public hearing, oral statements that 

focus on the written comments, the DEQ's analysis of comments and issues raised by the analysis will be accepted. 

Comments submitted during the comment period can be viewed at the EQC website: 

http://cgc.state.wy.us/docket.htm under the link titled "1 2-2101 and 12-2102 ". 

Any person wishing to use a digital presentation during their testimony before the EQC must provide a digital copy 

to the EQC no less than 3 days prior to the hearing unless you contact the EQC and request an extension for good 

cause. Failure to timely submit a digital copy will result in the person not being allowed to use the presentation 

during their testimony. 

The EQC may convene a meeting to deliberate and make a decision on these rules at the end of the hearing. The 

EQC also has the option to extend the public comment period on these rules. If the comment period is extended, the 

extension will be posted on the Air Quality website as well as the website for the Environmental Quality Council 

http://dcq.statc. wv .us/cqc/i nd ex. asp. 

In accordance with the Americans with Disabilities Act, special assistance or alternative formats will be made 

available upon request for individuals with disabilities