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CAA Permitting in Montana

Clean Air Act permitting in Montana is the responsibility of the Air Program within the Air, Energy and Mining Division of Montana Department of Environmental Quality.

Responsible Area

Statewide, except in Indian Country, where EPA Region 8 is the permitting authority

Agency Office

Air Program Exit
Air, Energy and Mining Division, Montana Department of Environmental Quality
1520 E. 6th Avenue, P.O. Box 200901
Helena, Montana 59620-0901
(406) 444-2544
Fax: (406) 444-4386
TTY line for the hearing impaired: (406) 444-9526

Air Permitting Information and Contacts

Air Quality Permits Home Exit

Public Notices - Air Quality Permits Exit

Air Permitting
Julie Merkel, Supervisor
(406) 444-3626

EPA Permit Program Oversight Lead
Carson Coate (
(406) 457-5042

Federal Construction Permit Authority Exit

Federal Title V Operating Permit Authority Exit

Title V Program Evaluation

Title V Program Approval History

Delegations of Authority for NSPS/NESHAP/MACT