A public notice announcement thumbtacked to a bulletin board

The following public notices have been issued for currently open public comment periods and scheduled public meetings, public hearings and other public events for air-related issues and regulated facilities. This list may include draft or proposed permits, rulemaking, state actions, plans, bond issues, tax proposals, public improvement projects and more. Most public comment periods are 30 days, unless additional time is required. The department places drafts of operating air permits on public notice for 30 days, and drafts of construction air permits on public notice for 40 days.

Please feel free to participate in any opportunities below that interest you. If you have questions about a specific public comment period, facility or event, please email or call the contact listed in the public notice. Hearing and speech-impaired individuals may reach us through Relay Missouri at 800-735-2966.

Please click on the specific public notice to access links to available electronic documents pertaining to that public notice and for information about how to submit comments, if applicable. Some documents may not be available due to their file size. Other available documents may be quite large, which may result in long download times for individuals with slow internet connections. If you would prefer to review or obtain printed copies of the documents, please submit an Open Records/ Sunshine Law Request.

To sort the table by notice title or topic, either use the "sort by" dropdown field or click on the column headings in the table. To view closed public comment periods that ended within the last two years, use the date range fields.

Notice Topic Start Date End Date Meeting/ Hearing Info
Draft 2026 Monitoring Network Plan Public Comment Period, May 28, 2026 to June 27, 2026
Air Pollution Control Program
Draft Monitoring Network Plan
Air Monitoring
No public meeting or public hearing scheduled.
Ameren Missouri-Peno Creek Energy Center Draft Part 70 Operating Permit Public Comment Period, June 5, 2026 to July 5, 2026
Air Pollution Control Program
Draft Part 70 Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
Ameren Missouri-Audrain Energy Center Draft Part 70 Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Part 70 Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
Cerro Flow Products-Mexico Draft Part 70 Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Part 70 Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
CertainTeed LLC-Jonesburg Draft Part 70 Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Part 70 Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
KCMO Water Supply Treatment Plant Draft Intermediate Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Intermediate Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
Lambert International Airport-St. Louis Draft Intermediate Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Intermediate Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
New Frontier Materials-South Asphalt Draft Intermediate Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Intermediate Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.
SSM Health St. Mary's Hospital Draft Intermediate Operating Permit Public Comment Period, June 26, 2026 to July 26, 2026
Air Pollution Control Program
Draft Intermediate Operating Permit
Air Operating Permits
No public meeting or public hearing scheduled.