The Gila River Indian Community is a federally recognized sovereign nation of roughly 21,300 enrolled Akimel O’odham (Pima) and Pee Posh (Maricopa) members, governing about 374,000 acres in south-central Arizona under its own constitution, court system, and regulatory code.1Gila River Indian Community Department of Environmental Quality. Community Facts Tribal law and governance in the Gila River Indian Community rest on a constitution ratified in 1960, an elected Governor and Council, a full-service tribal court, and a body of ordinances that cover everything from taxation and employment to air quality and commercial leasing. Federal statutes set the outer limits of what the Community can do in criminal cases and gaming, but inside those limits the Community makes and enforces its own law.
Who Governs the Community
The Community’s constitution and bylaws were approved on March 17, 1960.2Bureau of Indian Affairs. Constitution and Bylaws of the Gila River Indian Community, Arizona Executive authority sits with a Governor and Lieutenant Governor, both elected to three-year terms, who run the day-to-day administration and oversee tribal departments.3Gila River Indian Community. Executive Branch
Legislative power belongs to the Gila River Indian Community Council, a seventeen-member body elected by voters of their respective districts.2Bureau of Indian Affairs. Constitution and Bylaws of the Gila River Indian Community, Arizona The reservation is divided into seven geographic districts spread across 640 square miles.4Gila River Indian Community. Districts Council members serve three-year terms, taking office at the first regular council meeting in June after their election. The Council enacts ordinances, approves budgets, and directs the departments responsible for healthcare, education, land management, and public services.
Tribal Court and Criminal Jurisdiction
The Gila River Indian Community Court, established under the 1960 Constitution, hears criminal, civil, traffic, juvenile, and appellate matters within reservation boundaries.5Gila River Indian Community. Judicial Branch Trial-level decisions can be reviewed by a separate appellate division. Judges apply the Gila River Indian Community Code, which governs domestic relations, probate, torts, and other areas of community life.
Federal law caps what the court can impose in criminal cases. Under the Indian Civil Rights Act, the baseline maximum for any single offense is one year in jail and a $5,000 fine. For defendants with prior convictions of the same or a comparable offense, or those charged with conduct punishable by more than a year of imprisonment under federal or state law, the court may impose up to three years and a $15,000 fine per offense, with a cumulative cap of nine years.6Office of the Law Revision Counsel. 25 USC 1302 – Constitutional Rights Any sentence exceeding one year triggers two additional requirements: appointed counsel at tribal expense for defendants who cannot afford an attorney, and a presiding judge who is a licensed attorney with sufficient legal training.
Serious felonies fall outside the tribal court entirely. The Major Crimes Act sends offenses such as murder, manslaughter, kidnapping, arson, burglary, and robbery committed by an Indian in Indian country to federal district court.7Office of the Law Revision Counsel. 18 USC 1153 – Offenses Committed Within Indian Country Tribal law enforcement works with federal agencies on those investigations.
On the civil side, the court hears disputes involving community members and, in some circumstances, non-members who have entered into commercial agreements or other consensual relationships on tribal land.
Sovereign Immunity
Like all federally recognized tribes, the Community has inherent sovereign immunity and cannot be sued in state or federal court without its express consent. That protection extends to tribal enterprises that function as “arms of the tribe.” Any waiver must be express and unequivocal; it is never implied from the tribe’s participation in commerce or from a contract’s silence. In practice, the Community grants limited waivers for specific financing agreements or joint ventures, keeping the broader governmental assets outside the reach of litigation.
Doing Business on the Reservation
A business operating on reservation land answers to the Community’s own tax, licensing, employment, and environmental rules, not Arizona’s.
Taxation and Business Licensing
The Community imposes a Transaction Privilege Tax on commercial activity within its borders. Representative rates include retail sales and restaurant/bar at 6.0 percent, hotel and motel at 12.0 percent, alcohol sales at 8.0 percent, telecommunications at 1.5 percent, and nonresidential contracting at 6.0 percent. Returns are due on the 30th day of the month following the period in which the tax accrued, and late payments carry a 1.5 percent monthly interest charge, compounded monthly.8Gila River Indian Community. Transaction Privilege Tax Return Aviation and jet fuel are taxed at $0.03 per gallon, and tobacco products are taxed at rates that vary by product type, with cigarettes at $1.00 per pack of 20.
Non-members doing business on the reservation need a Gila River Indian Community business license, which costs $150 annually. The application calls for a description of the business activity, estimated gross sales, ownership structure, and an EIN or Social Security number. Licensees receive a copy of Title 13 of the Community Code and are responsible for its tax obligations. Buyers of an existing on-reservation business must also provide the prior owner’s license number and contact information.
Employment and TERO
Employers within the reservation’s exterior boundaries fall under the Community’s Tribal Employment Rights Ordinance (TERO), which requires preference for qualified Indians in hiring, contracting, and subcontracting. Courts treat this as a political preference rather than a racial one, and tribes are exempt from Title VII of the Civil Rights Act, which supports the preference requirements. Covered employers must submit compliance plans showing how they will meet the Community’s preference rules under Title 12 of the Community Code. The TERO Commission monitors compliance, investigates complaints, and can impose penalties, including halting a project for noncompliance.
Environmental Permits
The Gila River Indian Community Department of Environmental Quality runs its own air quality program under the Clean Air Act through an Air Quality Management Plan. Three permit categories cover most activity:
- Earth-moving permits for any dust-generating operation exceeding one acre, including land clearing, excavation, construction, and demolition. A Dust Control Plan must be submitted before breaking ground. Fees range from $75 for projects of one to ten acres to $36 per acre plus $110 for larger sites. Community entities are exempt from fees but still submit the application and plan.9Gila River Indian Community Department of Environmental Quality. Permit Types
- Stationary source permits for any facility emitting more than one ton annually of a criteria pollutant (such as nitrogen oxides, sulfur oxides, or particulate matter) or more than 1,000 pounds of any hazardous air pollutant. Agricultural equipment and operations are currently exempt.9Gila River Indian Community Department of Environmental Quality. Permit Types
- Burn permits for residential, commercial, and agricultural burning. Open burning of construction debris, demolished building materials, and chemical or petroleum products is prohibited outright.
Commercial Leasing
Commercial land leases are governed by the Gila River Indian Community Leasing Regulations of 2015, which set rules for lease terms, compensation and valuation, bonding, insurance, and formal approval.10Bureau of Indian Affairs. Gila River Indian Community Leasing Regulations Because reservation land is held in federal trust, the due diligence and consent process adds layers of review that do not exist off-reservation.
Water Rights
Water has been the Community’s most consequential legal issue for more than a century. The Arizona Water Settlements Act of 2004, enacted as Public Law 108-451, resolved decades of litigation over the Community’s entitlement to regional water sources.11Congress.gov. Public Law 108-451 – Arizona Water Settlements Act The Community holds rights to 653,500 acre-feet of water annually, drawn from the Gila River, the Central Arizona Project canal system, and other sources, one of the largest tribal water allocations in the country.12U.S. Department of Justice. Gila River Indian Community Water Rights Settlement The settlement also funds the irrigation infrastructure needed to move that water across the reservation.
The Lower Basin Drought Contingency Plan, which operates through December 31, 2026, imposes mandatory delivery reductions that fall hardest on Central Arizona Project agricultural users during shortage conditions.13Arizona Water Banking Authority. Drought Contingency Plan
Gaming
Gaming is the Community’s largest commercial enterprise and operates inside a tight federal-tribal-state framework. Under the Indian Gaming Regulatory Act, Class III gaming (slot machines and table games) is lawful on Indian lands only when authorized by a tribal ordinance, located in a state that permits such gaming, and conducted under a tribal-state compact approved by the Secretary of the Interior.14Office of the Law Revision Counsel. 25 USC 2710 – Tribal Gaming Ordinances The Community’s 2021 compact with Arizona permits up to four gaming facilities in the Phoenix metropolitan area: three existing casinos authorized for up to 1,400 gaming devices each and a fourth capped at 900.15Bureau of Indian Affairs. Gila River Indian Community Tribal-State Gaming Compact Revenue funds tribal government programs and infrastructure, a permissible use under IGRA, and the compact includes a trust fund arrangement that satisfies IGRA’s requirement that the tribe retain the sole proprietary interest in its gaming operations.