48:03:03:06Unclaimed prizes.

All prizes must be claimed within 180 days after the date of the drawing in which the prize was won. If the final day of the 180-day period falls on a Saturday, Sunday, or state holiday, the claim period ends on the next business day. Unclaimed prizes or shares of the jackpot prize for any on-line game do not increase a prize simultaneously won by another player in the game. Prizes not claimed within the specified period shall be added to the prize pools of subsequent lottery games.

Source: 17 SDR 51, effective October 8, 1990.