Wyoming New Source Review regulations & environmental compliance analysis

Wyoming New Source Review : What you need to know

Governing Law and Regulations

Construction permits: Wyoming Air Quality Standards and Regulations (WAQS&R) 6-2

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Nonattainment New Source Review (NSR): WAQS&R 6-13

Nonattainment areas: 40 CFR 81.351

City of Sheridan: WAQS&R 6-2(c)(ii)(B)

Prevention of Significant Deterioration (PSD): 40 CFR 52.21 and WAQS&R 6-4

Class I areas: 40 CFR 81.436

Regulatory Agencies

Wyoming Department of Environmental Quality (DEQ) Air Quality Division

U.S. Environmental Protection Agency (EPA) Region 8

See ADDRESSES & CONTACTS for addresses and telephone numbers.

Comparison: State vs. Federal

Rules. Wyoming requires new and modified sources of air pollution that emit above the established thresholds to apply for and obtain a construction permit. A construction permit must be obtained before the modification of an existing source or the installation of a new emissions source begins. For more information on construction permits, see the state section AIR EMISSIONS PERMITS.

Wyoming is currently in attainment with all of the National Ambient Air Quality Standards (NAAQS), except for ozone and PM-10. The state has incorporated by reference the federal requirement for nonattainment New Source Review (NSR). However, the state has imposed construction restrictions in the PM-10 nonattainment area rather than administering and enforcing nonattainment NSR requirements. Wyoming does administer a state implementation plan (SIP)-approved Prevention of Significant Deterioration (PSD) program. The Wyoming PSD regulations follow the federal requirements. See the national section NEW SOURCE REVIEW for more information on nonattainment NSR and PSD requirements.

Major sources must also comply with the Title V operating permit program. For ...


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Wyoming New Source Review Resources

Type Title
Checklists PSD Pre-Application Meeting Checklist
Forms PSD Project Information Form
See all New Source Review Resources