Michigan Compiled Laws, Chapter 460. Public Utilities § 460.838

(a) Retain a general manager of the joint agency, on either an acting or permanent basis.

(b) Establish broad policies covering all major operations of the joint agency.

(c) Retain an independent certified public accounting firm to provide annual financial audits.

(d) Adopt rules specifying quality control standards for contractual professional services in accordance with rules establishing those criteria promulgated by the department of licensing and regulation or a board or commission within that department.