RegulatoryLast reviewed: 12 May 2026
IGRA
Definition
The Indian Gaming Regulatory Act (US, 1988). The federal framework establishing tribal sovereignty over gaming on tribal lands.
Why it matters
IGRA is the foundational US federal statute for tribal gaming, signed in 1988. The act established three classes of gaming with different regulatory frameworks: Class I (traditional ceremonial), Class II (bingo and certain card games, regulated by tribes with federal oversight via NIGC), and Class III (casino-style games, requiring tribal-state compacts). The compact requirement for Class III is the legal mechanism through which most tribal casinos operate, with states negotiating specific arrangements about scope, exclusivity, and revenue sharing.
IGRA's relationship with online gambling is contested. The act doesn't explicitly address online gaming, which has produced ongoing legal questions about whether tribal sovereignty extends to online activity originating on tribal land but reaching customers off-reservation. State-level sports betting frameworks have introduced varied approaches: some include tribes as licensees alongside commercial operators; others reserve sports betting for tribal exclusivity; others exclude tribes entirely from the online sports betting framework. The interplay between IGRA, state compacts, and online gambling continues to evolve through case law and legislation.
Related terms
- Tribal GamingRegulatory
Gambling operated by Native American tribes under the federal Indian Gaming Regulatory Act framework. The largest single segment of US casino gambling by GGR.
- NIGC (National Indian Gaming Commission)Regulatory
The US federal regulator of tribal gaming, operating under the Indian Gaming Regulatory Act framework.
- AGA (American Gaming Association)Regulatory
The US trade body representing commercial casinos, suppliers, and adjacent businesses.
- Market AccessRegulatory
The right to operate in a regulated market, often acquired through partnership with a licensed local entity (US states), through licensing application, or through M&A.
Frequently asked questions
Does IGRA cover online gambling?
Not explicitly. The act predates modern online gambling and addresses gaming on tribal lands. Whether online gaming originating from tribal lands falls within IGRA's scope is one of the active legal questions in current US gambling policy, with case law developing on specific facts.
Who enforces IGRA?
The National Indian Gaming Commission (NIGC) is the federal regulator with oversight of tribal gaming under IGRA. State governments are parties to compacts under IGRA but don't directly regulate tribal gaming. Tribes regulate their own operations subject to the IGRA framework.