While Nevada is famous globally, the vast majority of physical casino locations in the United States are actually located on tribal lands.
Because Native American tribes are considered sovereign nations, they operate under entirely different legal frameworks than commercial state casinos.
The Legal Foundation: The IGRA of 1988
The primary goal of the IGRA was to promote tribal economic development, self-sufficiency, and strong local governments.
Class II gaming encompasses bingo and electronic games that function mathematically like bingo, requiring very little state oversight.
- These state compacts dictate exactly how much revenue the tribe must share with the local state government in exchange for holding a monopoly
- Because they operate on sovereign land, tribal casinos are generally exempt from many standard state taxes and corporate regulations
- This sovereign status is why a massive, full-scale casino can exist legally in a state where commercial gambling is otherwise strictly prohibited
The Mechanics of Class II Bingo Slots
This is because Class II slot machines are not actually slot machines at all; they are high-speed, electronic bingo games in disguise.

The spinning reels on the screen are just an entertaining visual animation; whether you win or lose depends entirely on the hidden digital bingo card.
| Gaming Class | Game Types Included | Regulatory Requirement |
|---|
| Class II | Bingo, Pull-Tabs, 'Bingo' Slots | Tribe-regulated with Federal oversight (No State Compact needed) |
| Class III | Vegas Slots, Blackjack, Craps, Roulette | Requires a heavily negotiated State Compact |
The next time you play at a tribal resort, take a moment to appreciate the complex legal history that built the building.