25 CFR §547.16

1. (a)Rules, instructions, and prize schedules, generally. The following must at all times be displayed or made readily available to the player upon request:
   1. (1)Game name, rules, and options such as the purchase or wager amount stated clearly and unambiguously;
   2. (2)Denomination;
   3. (3)Instructions for play on, and use of, the player interface, including the functions of all buttons; and
   4. (4)A prize schedule or other explanation, sufficient to allow a player to determine the correctness of all prizes awarded, including:
      1. (i)The range and values obtainable for any variable prize;
      2. (ii)Whether the value of a prize depends on the purchase or wager amount; and
      3. (iii)The means of division of any pari-mutuel prizes; but
      4. (iv)For Class II Gaming Systems, the prize schedule or other explanation need not state that subsets of winning patterns are not awarded as additional prizes (for example, five in a row does not also pay three in a row or four in a row), unless there are exceptions, which must be clearly stated.
2. (b)Disclaimers. The Player Interface must continually display:
   1. (1)“Malfunctions void all prizes and plays” or equivalent; and
   2. (2)“Actual Prizes Determined by Bingo (or other applicable Class II game) Play. Other Displays for Entertainment Only” or equivalent.
3. (c)Odds notification. If the odds of winning any advertised top prize exceeds 100 million to one, the Player Interface must display: “Odds of winning the advertised top prize exceeds 100 million to one” or equivalent.