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Pacific Southwest, Region 9

Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations

Air Actions, Gila River Indian Community

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Final Action

EPA Finalizes Approval of Air Quality Regulations for the Gila River Indian Community

January 19, 2011: Final approval of the Gila River Indian Community Tribal Implementation Plan.

On January 19, 2011, at a ceremony in Sacaton, Arizona, the EPA Regional Administrator signed the final rule approving the Gila River Indian Community’s Tribal Implementation Plan (TIP) under the Clean Air Act. The effect of our final action is to make the TIP federally enforceable.

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Contact Information

Wienke Tax (tax.wienke@epa.gov)
Air Division
(415) 947-4192

Federally Approved TIP

Regulatory Portion
Nongregulatory Portion

Proposed Action

August 3, 2010: Proposed approval of the Gila River Indian Community Tribal Implementation Plan.

EPA is proposing to approve the Gila River Indian Community’s Tribal Implementation Plan (TIP) under the Clean Air Act to regulate air pollution within the exterior boundaries of the Tribe’s reservation. The proposed TIP includes ambient air quality standards, permitting requirements for minor sources of air pollution, enforcement authorities, procedures for administrative appeals and judicial review in Tribal court, requirements for area sources of fugitive dust and fugitive particulate matter, and source category-specific emission limitations. This is the most comprehensive TIP in the nation.

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