Any school district that enters into contractual agreements pursuant to § 13-15-11 and sends over fifty percent of its resident students enrolled in grades for which it contracts to an adjoining school district or districts located in South Dakota shall reorganize the school district pursuant to chapter 13-6 within two years of the end of the school year. For the purposes of this section, the number of students attending adjoining districts shall be based on fall enrollment as defined in § 13-13-10.1. This section does not apply to a school district located wholly within the boundaries of an Indian reservation.
SDCL 13-15-28