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.

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, visit the Environmental Permits Division.

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

State Rulemakings

Final Amendments to 11 Miss. Admin. Code Part 2, Chapter 6 – “Air Emissions Operating Permit Regulations for Purposes of Title V of the Federal Clean Air Act” (Effective August 19, 2024)

Federal Rulemakings

Wednesday, January 22, 2025.

National Emissions Standards for Hazardous Air Pollutants: Chemical Manufacturing Area Source (CMAS), Technology Review, Proposed rule (a new area source category for Ethylene Oxide (EtO), plus…)

40 CFR Part 63, subpart VVVVVV (6V)

Thursday, January 16, 2025

New source Performance Standards and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and 5-Year Review, Proposed rule.

Reopening the public comment period for an additional 6 months (reference: FR Tuesday, January 23, 2024)

Wednesday, January 15 & 17, 2025

New Source Performance Standards for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources:

Oil and Natural Gas Sector Climate Review. Proposed amendments

EPA is proposing amendments in response to petitions for reconsideration. Specifically, this action proposes discrete technical changes to two different aspects of the rules.

40 CFR part 60, subpart OOOOb, OOOOc A Correction to this proposed amendment was made in the January 17, 2025, FR:

Tuesday, January 7, 2025

Re-classifications of Major Sources as Area Sources of the Clean Air Act: Correction to General Provisions.

40 CFR Part 63, Subpart A, General Provisions

Tuesday, January 7, 2025

National Emissions Standards for Hazardous Air Pollutants: Perchlorethylene Standards for Dry Cleaning Facilities, Technology Review, final determination.

“This final rule does not finalize the changes made at proposal and makes no amendments to the current NESHAP”

40 CFR Part 63, Subpart M A correction rule was made on February 19, 2025.

News and Notices

Effective July 1, 2025, the emissions portion of the Title V fee schedule shall be $27.00 per ton of each regulated air pollutant for the state fiscal year (July 1, 2025 to June 30, 2026)

MDEQ is providing notice of the final 2025 Annual Monitoring Network Plan (AMNP) and the official response to comments received during the 30-public comment period (May 28 – June 28, 2024).

2025 Final Annual Monitoring Network Plan (Amended August 23, 2024)MDEQ Response to Comments (Revised August 23, 2024)

EPD encourages anyone who may be interested in receiving routine notifications on permitting-related public notices to sign-up at their Public Notice Distribution webpage.

Visible Emissions Evaluation Training and Certification (Smoke School), Spring and Fall 2024

Changes to Asbestos and Lead-Based Paint Notification Forms and New Email Address for Submission

2024 Air Quality Data Summary

Contact Information

Street Address
Office of Pollution Control
Air Division
515 East Amite Street
Jackson, MS 39201

Mailing Address
Office of Pollution Control
Air Division
P. O. Box 2261
Jackson, MS 39225

Fax Numbers:
(601) 961-5725 or (601) 961-5742

Air Division Organizational Chart