Michigan Compiled Laws, Chapter 257. Motor Vehicles § 257.629a

Sec. 629a. The board of supervisors of any county may create a county traffic safety organization to cooperate with governmental units and officials thereof in the solution of traffic safety problems in the county and to appropriate such sums as it shall deem necessary for the creation and support thereof and to prescribe rules and regulations relative to the duties of such organization and with respect to the expenditure of any such appropriation.