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  2. Permitting Under the Clean Air Act
  3. Clean Air Act Permitting Around the Nation

CAA Permitting in EPA's South Central Region

EPA's South Central region  (Region 6) serves Arkansas, Louisiana, New Mexico, Oklahoma, Texas and 66 Tribes

Focus Topics for Region 6

  • EPA Federal Permit actions on Tribal Land:
    • Process Overview, Application Forms, and Registrations
    • Tribal PBR Applications and Authorizations
    • Tribal NSR Permit Applications and Permits  
    • Part 71 Operating Applications and Permits
  • Other EPA Activities on Tribal Land
    • FIP - Oil and Gas
    • Tribal Consultations for SIP Actions
    • Treatment-As-State (TAS) Actions
  • EPA Federal Permit Actions in the Gulf of America
    • Air Permitting for Deepwater Port Act Projects
  • EPA Oversight Activities for State/Local Region 6 Permitting Agencies
    • Title V Program Evaluations
    • Title V Petitions (R6 only)

Contact Information for Region 6 Air Permitting

  • Air Permits Section Chief - Cynthia Kaleri
    Phone (214) 665-6772

 Program Contacts:

  • Air Modeling for PSD Permitting:  Ashley Mohr  (214) 665-7289
  • Tribal Coordinator:  Erica LeDoux (214) 665-7265
  • State/Local Coordinators:
    • Arkansas - Rick Barrett (214) 665-7227
    • Louisiana - Brad Toups (214) 665-7258
    • Oklahoma- Kathleen Carmean (214) 665-6504
    • New Mexico/Albuquerque-  Elizabeth Layton (214) 665-2136 
    • Texas -  Aimee Wilson (214) 665-7596 
  • Region 6 GHG Permitting Contact
    • Aimee Wilson (214) 665-7596

Region 6 MailCodes and Regulatory Mailing Addresses

  • MailCodes and Mailing Address Info

State/Tribal/Local Permitting Authorities

Region 6 has approved or delegated authority for these states and other jurisdictions to issue certain CAA permits.

  • Arkansas
  • Louisiana
  • New Mexico
  • Oklahoma
  • Texas
  • 66 tribes

Permit applications and other permitting related documents for submittal to Region 6 may be sent electronically in a searchable Portable Document Format (PDF) or Microsoft Word, excel, or other database documents and will only be accepted by email. Confidential Business Information (CBI) also should be submitted by email, but separate from non-confidential files and must include "confidential" in the file name or email subject line.  Files submitted cannot be zipped. Nor can individual files exceed 10MB each. Multiple files can be submitted in an email, but the total size of all files submitted in an email cannot exceed 25MB. If you need to submit larger files, please send an email to request transfer via FTP to the EPA program contact for the state in which the source is located. Air permit related documents for sources on Tribal lands located within Region 6 should be submitted using this email address:R6AirPermitsTribal document email.  Air permit related documents for non-Tribal land sources located in Arkansas, Oklahoma, and New Mexico should be submitted using this email address:  AR, OK, or NM permit document email.  Texas non-Tribal land located sources please submit air permit related documents to: Texas permit document email.  Louisiana non-Tribal land located sources should submit air permit related documents to: Louisiana permit document email.

Sign Up to Receive Email Notifications from Region 6’s Public Notice Distribution List


Region 6

Region 6

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

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)
      • About PSD Permitting in Region 9
      • Air Permit Delegation and PSD SIP Approval Status in Region 9
      • About NSR Permitting in Region 9
      • About Title V Permitting in Region 9
      • Electronic Permit System and Dashboards
      • Pending and Completed Permit Actions
      • Clean Air Act Permitting in Arizona
      • Clean Air Act Permitting in California
      • Clean Air Act Permitting in Hawai'i and Pacific Islands
      • Clean Air Act 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 4, 2025
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