Minn. Stat. § 383D.27

Unless the county board has elected to exclude some or all positions otherwise subject to merit systems established under sections 12.22, subdivision 3 , 256.012 , and 387.31 to 387.45 , from the jurisdiction of the employee relations department, those sections and any rules promulgated under them shall be superseded as far as they are inconsistent with sections 383D.21 to 383D.35 , but no position subject to merit systems established pursuant to sections 12.22, subdivision 3 , and 256.012 , shall be removed from existing merit system coverage and placed under a department established pursuant to sections 383D.21 to 383D.35 , until the department is certified in accordance with the United States Office of Personnel Management's standards for a merit system of personnel administration. Nothing in section 387.43 shall be construed to prohibit the inclusion of sheriff's department personnel in a personnel system established pursuant to sections 383D.21 to 383D.35 .