Within fifteen days after receiving the decision by the department, any party may appeal the decision to the secretary of labor and regulation. The secretary of labor and regulation may on the secretary's own motion affirm, modify, or set aside any decision on the basis of the evidence previously submitted in the case or the secretary may direct the taking of additional evidence. The secretary shall promptly notify the interested parties of the secretary's findings and decision. Any decision of the secretary is the final decision of the department. Any final decision of the department may be appealed as provided in chapter 1-26.
SDCL 62-2-20