20:18:15:25Splitting pairs.

If the first two cards dealt to a player are identical in value, the player may split the hand into two separate hands by making a wager on the second hand equal to the original wager. If a player splits pairs, the dealer must deal a second card to the first hand so formed and must complete the player's decisions on that hand before dealing cards to the second hand. After a second card is dealt to a split pair, the player must stand, surrender, draw, or double down. A player may not split pairs more than three times in a round of play on any one hand. A player splitting aces may have only one card dealt to each ace. If the dealer obtains blackjack after a player splits pairs, the dealer may only collect the amount of the original wager of the player and may not collect the additional amount wagered in splitting pairs.

Source: 16 SDR 57, effective October 1, 1989.