Delivery of a written request for a hearing provided by § 13-43-6.2 or 13-43-6.7 shall be established by certified mail with return receipt signed by the superintendent, chief executive officer, or board member, or a person authorized to accept certified mail for the district, or personal delivery evidenced by a receipt signed by the superintendent, chief executive officer, or board member, or an affidavit of personal service upon the district made by a person authorized to effect personal service no later than fifteen days after receipt of the notice by the teacher.
SDCL 13-43-6.9