Air

The Air Division is responsible for ensuring that air quality within Mississippi is protective of public health and welfare. The division is charged with controlling, preventing, and abating air pollution to achieve compliance with air emission regulations pursuant to the Mississippi Air and Water Pollution Control Act, applicable regulations promulgated by the U.S. Environmental Protection Agency (EPA), and the federal Clean Air Act. This mission is primarily achieved through ambient air monitoring and applicable air permitting.

To sign up to receive notifications on Air Division notices or air-related updates, please visit our Air Notice Distribution Webpage.

For information regarding air permits and related application forms, please visit the Environmental Permits Division.

For information regarding air compliance and enforcement, visit the Environmental Compliance and Enforcement Division.

State Rulemakings

Federal Rulemakings

Wednesday March 18, 2026
NESHAP: Polyether Polyols Production (PEPO), Industry Review, final rule
40 CFR part 63, subpart PPP and Subparts A and U
This final rule is effective on March 18, 2026

https://www.govinfo.gov/content/pkg/FR-2026-03-18/pdf/2026-05261.pdf

Tuesday March 10, 2026
NSPS for New Stationary Sources and Emission Guidelines (EG) for Existing Sources: Large Municipal Waste Combustors, Voluntary Remand Response and Five-Year Review. Final rule
40 CFR Part 60, Subparts A, Cb, Eb, VVVV, WWWW

https://www.govinfo.gov/content/pkg/FR-2026-03-10/pdf/2026-04646.pdf

Tuesday, February 24, 2026
NESHAP: Coal- and Oil-Fired Electric Utility Steam Generating Units (MATS): Final rule, Repeal
Effective date April 27, 2026
40 CFR Part 63, Subpart UUUUU, and Subpart A
EPA proposes to remove the documentation requirements in 40 CFR 68.90(b)(6) and 68.95(a)(1)(i)

https://www.govinfo.gov/content/pkg/FR-2026-02-24/pdf/2026-03638.pdf

Wednesday, February 18, 2026
Fyi: Rescission of the Greenhouse Gas Endangerment Finding and Motor Vehicle Greenhouse Gas Emission Standards Under the Clean Air Act

https://www.govinfo.gov/content/pkg/FR-2026-02-18/pdf/2026-03157.pdf

Friday, January 30, 2026
Interstate Transport Plan Review for the 2015 Ozone NAAQS: Proposed rule, reconsideration of final rule.
40 CFR Part 32 Mississippi __ subpart Z

https://www.govinfo.gov/content/pkg/FR-2026-01-30/pdf/2026-01844.pdf

Thursday, January 15, 2026
NSPS Review for Stationary Combustion Turbines and Stationary Gas Turbines, Final rule
40 CFR Part 60 Subparts, A, GG, KKKK, & KKKKa

https://www.govinfo.gov/content/pkg/FR-2026-01-15/pdf/2026-00677.pdf

Tuesday, January 6, 2026
Extension of the SIP Due Date for the Regional Haze Third Implementation Period, from July 31, 2028, to July 31, 2031

https://www.govinfo.gov/content/pkg/FR-2026-01-06/pdf/2026-00003.pdf

Friday, January 2, 2026
Congressional Review Act Revocation of 2024 Review of Final Rule Reclassification of Major Sources as Area Sources Under Section 112 of the Clean Air Act
40 CFR Part 63, Subpart A, general provisions

https://www.govinfo.gov/content/pkg/FR-2026-01-02/pdf/2025-24202.pdf

News and Notices

MDEQ is providing notice to the general public on the Final Public Notice for Regulations for the Accreditation and Certification of Asbestos Abatement Personnel,” 11 Miss. Admin. Code Pt. 2, Ch. 10. (“Chapter 10”). The action is reflected in Commission Order 7676-26 below.

MDEQ is providing notice to the general public on the finalized Title V Program fee schedule for state fiscal year 2027 (July 1, 2026 – June 30, 2027).  More information may be found in the “FY2027 Title V Program Fee – Notice of Final Fee Schedule” document below.

Contact Information

Air Division Organizational Chart