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  1. Home
  2. Permitting Under the Clean Air Act
  3. Clean Air Act Permitting Around the Nation
  4. Pacific Southwest Region (R9)

Clean Air Act Permitting in Arizona

EPA's Pacific Southwest (Region 9) implements and enforces federal environmental laws in Arizona, California, Hawaii, Nevada, the Pacific Islands, and 148 Tribal Nations.

Clean Air Act permitting in Arizona is the shared responsibility of one state and three county agencies, as well as EPA Region 9. EPA Region 9 is responsible for processing permits on most tribal lands in Arizona. The Navajo Nation and the Gila River Indian Community also issue some types of permits. More information about the responsible agencies is available on this page.

On this page:
  • Arizona Air Permitting
  • Tribal Air Permitting in Arizona

Arizona Air Permitting

If the Plus (+) Icon (plus) icon is visible in the table, click for more information.
AgencyResponsible AreaResponsibilitiesContactsFederally-Approved Construction Permit AuthorityFederally-Approved Operating Permit AuthorityTitle V Program Approval History

Arizona Department of Environmental Quality

1110 West Washington Street Phoenix, Arizona 85007

General Information: (602) 771-2300
Toll Free: (800) 234-5677

Statewide except for Maricopa, Pima, Pinal Counties and Tribal Lands

Clean Air Act Major and Minor New Source Review

Clean Air Act Part 70 Permitting

Balaji Vaidyanathan
Facilities Emissions Control Section Manager
Vaidyanathan.Balaji@azdeq.gov

Karla Murrieta
Air Permits Unit Manager
Murrieta.Karla@azdeq.gov

Arizona Administrative Code, Title 18, Chapter 2Arizona Administrative Code, Title 18, Chapter 22006 Evaluation Report

Maricopa County Air Quality Department

3800 N Central Ave #1400 Phoenix, AZ 85012

Maricopa County except Tribal Lands

Clean Air Act Major and Minor New Source Review

Clean Air Act Part 70 Permitting

Chuck Erickson
Permit Division Manager Charles.Erickson@maricopa.gov 
(602) 506-6742

Audrey Lang
Title V Permitting Supervisor Audrey.Lang@maricopa.gov (602) 799-6475

Ryan Dalrymple
Non-Title V Permitting Supervisor Ryan.Dalrymple@maricopa.gov (602) 531-4412

Maricopa County Air Pollution Control Rules, Regulation II, Rule 200, 240, 241Maricopa County Air Pollution Control Rules, Regulation II, Rule 2102019 Evaluation Report

Pima County Department of Environmental Quality Air Program

33 N. Stone Ave., Suite 700 Tucson, AZ 85701
(520) 724-7400

Pima County except Tribal Lands

Clean Air Act Major and Minor New Source Review

Clean Air Act Part 70 Permitting

Melissa Hawthorne
Air Program Manager Melissa.Hawthorne@pima.gov
(520) 724-7341
Pima County Code of Ordinances, Title 17, Chapter 17.12, 17.16Pima County Code of Ordinances, Title 17, Chapter 17.12, 17.162004 Evaluation Report

Pinal County Air Quality

31 N. Pinal St Building F Florence, AZ 85132
(520) 866-6929

Pinal County except Tribal Lands

Clean Air Act Major and Minor New Source Review

Clean Air Act Part 70 Permitting

Rupesh Patel
Air Quality Manager
Rupesh.Patel@pinal.gov
(520) 866-6915
Pinal County Code of Regulations, Chapter 3 (Permits and Permit Revisions)Pinal County Code of Regulations, Chapter 3 (Permits and Permit Revisions)2018 Evaluation Report

Tribal Air Permitting in Arizona

EPA Region 9 is responsible for issuing permits on Tribal Lands in Arizona. Of the many tribes in Arizona, Navajo Nation and the Gila River Indian Community have authority to implement portions of the permitting programs under the Clean Air Act. The table below describes the various authorities.

If the Plus (+) Icon (plus) icon is visible in the table, click for more information.
AgencyResponsible AreaResponsibilitiesContactsFederally-Approved Construction Permit AuthorityFederally-Approved Operating Permit Authority

EPA Region 9 Air Division, Permits Office

75 Hawthorne St (AIR-3) San Francisco, CA 94105

Tribal lands in AZ, except for Navajo Nation and Gila River Indian CommunityIssues all permits in tribal lands, except for Navajo Nation and Gila River Indian Community. Issues NSR permits in Navajo Nation. Issues major NSR and title V operating permits in Gila River.Gerardo Rios, P.E.
Section Chief
rios.gerardo@epa.gov
(415) 972-3974
40 CFR 49.151 (minor NSR) 40 CFR 49.166 (nonattainment NSR) 40 CFR 52.21 (PSD)40 CFR 71

Gila River Indian Community Department of Environmental Quality

P.O. Box 97 1576A
South Nelson Dr.
Chandler, AZ 85226
(520) 562-2234

Gila River Indian Community Tribal LandIssues minor NSR permits in GRIC Tribal LandRyan Eberle, P.E.
Air Quality Program Manager ryan.eberle@gric.nsn.us 
(520) 562-2234
P.O. Box 97 168 Skill Center Road Sacaton, AZ 85147
GRIC Code, Title 17, Chapter 9. (See 76 FR 17028 for federal approval into TIP)None

Navajo Nation Environmental Protection Agency

Route 112 N Bldg. #2837
Fort Defiance, AZ
(928) 871-7692

Navajo Nation Tribal LandIssues Title V operating permits in Navajo Nation Tribal LandNatasha M. Yazzie
Senior Environmental Specialist
Nyazzie1@navajo-nsn.gov
(928) 729-4248
 None (Delegation of 40 CFR 71)

Arizona

arizona

EPA Pacific Southwest CAA Resources

CAA Permitting in EPA's Pacific Southwest

Pending and Issued Permits
  • About OCS Permits
  • About PSD Permits
  • About Title V Permits
  • About Tribal NSR Permits
  • Contacts
  • Public Notice Distribution List Sign-Up

Resources

  • Air Permit Delegation and PSD SIP Approval Status
  • Construction Approvals: Radionuclides
  • Electronic Permit Submittal System and Dashboards
  • Title V Program Evaluations
  • Tribes that are Affected States Under the Title V Permitting Program

State/Tribal/Local Permitting Authorities

AZ | CA | HI | NV

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
Contact Us About Permitting Under the Clean Air Act to ask a question, provide feedback, or report a problem.
Last updated on May 22, 2026
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