S.D. Codified Laws § 32-23-4.5
Convictions in other states considered
Any conviction for, or plea of guilty to, an offense in another state which, if committed in this state, would be a violation of § 32-23-1 , 22-18-36 , or 22-16-41 , and occurring within ten years prior to the date of the violation being charged, or twenty-five years if the requirements of § 32-23-4.9 have been satisfied, must be used to determine if the violation being charged is a second, third, or subsequent offense.
Source: SL 1983, ch 244, § 3; SL 2001, ch 177, § 2; SL 2010, ch 165, § 2; SL 2023, ch 106, § 1.