15-6-23(c). Determination by order whether class action to be maintained--Notice--Judgment--Actions conducted partially as class actions. (1) As soon as practicable after the commencement of an action brought as a class action, the court shall determine by order whether it is to be so maintained. An order under this section may be conditional, and may be altered or amended before the decision on the merits.

(2) In any class action maintained under subdivision 15-6-23(b)(3), the court shall direct to the members of the class the best notice practicable under the circumstances, including individual notice to all members who can be identified through reasonable effort. The notice shall advise each member that (A) the court will exclude him from the class if he so requests by a specified date; (B) the judgment, whether favorable or not, will include all members who do not request exclusion; and (C) any member who does not request exclusion may, if he desires, enter an appearance through his counsel.

(3) The judgment in an action maintained as a class action under subdivision 15-6-23(b)(1) or (2), whether or not favorable to the class, shall include and describe those whom the court finds to be members of the class. The judgment in an action maintained as a class action under subdivision 15-6-23(b)(3), whether or not favorable to the class, shall include and specify or describe those to whom the notice provided in subdivision (2) of this section was directed, and who have not requested exclusion, and whom the court finds to be members of the class.

(4) When appropriate (A) an action may be brought or maintained as a class action with respect to particular issues, or (B) a class may be divided into subclasses and each subclass treated as a class, and the provisions of § 15-6-23 shall then be construed and applied accordingly.Source: SD RCP, Rule 23 (c), as adopted by Sup. Ct. Order No. 2, March 31, 1969, effective July 1, 1969.