S.D. Codified Laws § 31-29-71.10
Current with legislation signed by the governor on or before 3/6/2024
Any zoned commercial or industrial area in a quadrant of an interstate interchange which has service road access within two thousand five hundred feet of the interstate or has an existing commercial or industrial activity in that quadrant is acceptable for outdoor advertising purposes to the extent it is within one mile of the crossroad measured from the centerline of the crossroad and within three thousand five hundred feet of the interstate centerline.
SDCL 31-29-71.10