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Which federal agencies and courts oversee many policies affecting Native American tribes?

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Map of the United States showing states that allow Indian casino gambling operations highlighted in blue, while states without such operations are shown in beige. Most western, midwestern, and northeastern states permit Indian gaming, while several southern and southeastern states do not. — Indian gaming U.S. states that allow Indian gaming.

Policy issues concerning Native American tribes, including those related to economics, politics, religion, and education, are primarily overseen by the Bureau of Indian Affairs (BIA) and decided within the federal court system.1

The BIA is an agency within the U.S. Department of the Interior, which serves as the principal link between the U.S. government and federally recognized Native American and Alaska Native populations. The department is responsible for managing reservation communities and administering millions of acres of land held in trust.23

In the context of Indian gaming, while tribes maintain a unique legal status as "domestic sovereign nations," their operations must comply with federal laws, such as the Indian Gaming Regulatory Act of 1988. The federal judiciary has played a significant role in defining these jurisdictional boundaries, such as in California v. Cabazon Band of Mission Indians (1987), which affirmed tribal sovereignty regarding gaming on reservation lands.14