(b) If an automated card shuffling device is utilized, Three Card Prime may be played with two decks of cards in accordance with the following requirements:

1. (1) The cards in each deck must be of the same design. The backs of the cards in one deck must be of a different color than the cards included in the other deck.
2. (2) One deck of cards shall be shuffled and stored in the automated card shuffling device while the other deck is being used to play the game.
3. (3) Both decks are continuously alternated in and out of play, with each deck being used for every other round of play.
4. (4) The cards from only one deck are placed in the discard rack at any given time.

(c) The decks of cards used in Three Card Prime shall be changed at least every:

1. (1) Four hours if the cards are dealt by hand.
2. (2) Eight hours if the cards are dealt from a manual or automated dealing shoe.