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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)

About Title V Permitting in Region 9

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

View Pending and Completed Title V Permit Actions

Region 9 CAA Permitting Focus

CAA Permitting in EPA's Pacific Southwest (Region 9)

Pending and Issued Permits by Region 9
  • About OCS Permits
  • About PSD Permits
  • About Title V Permits
  • About Tribal NSR Permits
Region 9 Resources
  • Air Permit Delegation Agreements
  • Construction Approvals: Radionuclides
  • Electronic Permit Submittal System and Dashboards
  • Title V Program Evaluations
  • Tribes that are Affected States under the Title V Permitting Program in Region 9

State/Tribal/Local Permitting Authorities
AZ | CA | HI | NV

Region 9 Contacts

Sign Up to Receive Email from Region 9's Public Notice Distribution List

Title V of the Clean Air Act requires state and local permitting authorities to adopt an operating permit program for major sources of air pollution. These operating permits are often referred to as “Title V Permits".

Learn More: Basic Information about Operating Permits.

On this page:
  • Approved/Delegated Title V Permit Programs
  • EPA Oversight of Title V Programs
  • Title V Permits Issued by Region 9

Approved/Delegated Title V Permit Programs

In Region 9, all state and local permitting authorities have an approved operating permit program. The programs are adopted under 40 CFR part 70. For Pacific Islands, the programs are adopted under 40 CFR part 69.

Tribes may, but are not required to, adopt their own operating permit programs. EPA may also delegate its authority to a Tribe that meets the necessary requirements under Part 71. See Tribal agencies that have received a part 71 delegation of authority.

Learn more about permitting authority in:
Arizona | California | Hawaii/Pacific Islands | Nevada


EPA Oversight of Title V Programs

Each approved or delegated operating permit program submits Title V permitting actions to the EPA for review. EPA may object to the issuance of a proposed Title V permit, or the public may petition the EPA to object to the Title V permit. Additionally, the EPA conducts Title V program evaluations to evaluate how approved or delegated Title V programs are being implemented.

  • Learn More About: Title V Petitions and Title V Program Evaluations

See the Pacific Southwest (Region 9) Title V Permits Dashboard for information regarding the EPA’s oversight of individual Title V permit actions, including permit documents and the deadline for submitting Title V petitions. This database is only complete where permitting authorities submit permits electronically to the EPA. When permits are not submitted electronically, only summary data may be available.


Title V Permits Issued by Region 9

For areas without an approved/delegated operating permit program, EPA is the Title V permitting authority and implements the program under 40 CFR part 71.

  • View Pending and Completed Title V Permit Actions in Region 9
  • Sign Up to Receive Email from Region 9's Public Notice Distribution List

Information for Permit Applicants (ONLY for EPA-issued permits)

  • Forms: Title V permit application and fee payment forms: Application Forms
  • See also: Update to Application Submittal Instructions
  • Fees: Each year’s presumptive minimum permit fees

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 March 13, 2025
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