S.D. Codified Laws § 58-16-33
Current with legislation signed by the governor on or before 3/6/2024
A policy of group life insurance shall contain a provision specifying an equitable adjustment of premiums or of benefits or of both to be made in the event the age of a person insured has been misstated, such provision to contain a clear statement of the method of adjustment to be used.
SDCL 58-16-33