48:01:04:07Deadline for claiming prizes.
Section · Administrative Rules of South Dakota · View on sdlegislature.gov ↗
All instant game prizes must be claimed within 180 days of the announced end of the game or, in the case of a drawing prize, within 180 days after the drawing in which the prize was won. Any prize not claimed within the 180 days is forfeited.
Source: 14 SDR 53, effective October 11, 1987.