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  2. Permitting Under the Clean Air Act

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 
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 

Public Notices - Air Quality Permits 

Montana Air Permitting, Permitting Section Supervisor (Acting)
Craig Henrikson (CHenrikson@mt.gov)
(406) 444-6711

EPA Permit Program Oversight Contact
DJ Law (law.donald@epa.gov)
(303) 312-7015

EPA-Approved/Delegated Authorities

Federal Construction Permit Authority 

Federal Title V Operating Permit Authority 

Title V Program Evaluation

Title V Program Approval History

Delegations of Authority for NSPS/NESHAP/MACT


Map of Montana

Montana

Region 8 CAA Permitting Focus

  • Region 8 CAA Permitting Home
  • Permits Out for Public Comment
  • EPA Pending Permits
  • EPA Issued Permits
  • State/Tribal/Local Authorities
    • Colorado
    • Montana
    • North Dakota
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    • Southern Ute Indian Tribe
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  • About Region 8

National Supporting Resources

  • CAA Permitting Home
  • New Source Review (NSR) Program
  • Title V Program
  • Tribal Permit Program
  • Outer Continental ​Shelf Permit Program
  • CAA Permitting Tools & ​Related Resources
  • Air Permitting Terms
  • Where You Live

Air Permitting Policy & Guidance

  • Search Documents
  • NSR Policy & Guidance
  • Title V Policy & Guidance
  • Title V Petition Database

Sign Up for Region 8's Mailing List

Sign up to be notified by email of Region 8 CAA permit public comment opportunities.

Permitting Under the Clean Air Act

  • Clean Air Act Permitting Around the Nation
    • New England Region (R1)
    • New York, New Jersey, Puerto Rico and U.S. Virgin Islands (R2)
    • Mid-Atlantic Region (R3)
    • Southeastern Region (R4)
    • Great Lakes Region (R5)
    • South Central Region (R6)
    • Midwest Region (R7)
    • Mountains and Plains Region (R8)
    • Pacific Southwest Region (R9)
      • Air Permit Delegation and PSD SIP Approval
      • Electronic Permit System and Dashboards
      • Pending and Issued Permits
      • About NSR Permitting
      • About OCS Permitting
      • About PSD Permitting
      • About Title V Permitting
      • Permitting in Arizona
      • Permitting in California
      • Permitting in Hawai'i and Pacific Islands
      • Permitting in Nevada
    • Pacific Northwest Region (R10)
  • CAA Permitting Tools & ​Related Resources
  • Outer Continental Shelf Air Permits
Contact Us About Permitting Under the Clean Air Act
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on February 20, 2025
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