Mich. Comp. Laws § 400.74: Child care and social welfare funds; disbursement; bond; purchases made locally.

Sec. 74.

All moneys in the child care fund provided for the use of the county department and all moneys in the social welfare fund shall be disbursed on the order or warrant of the county department, over the signature of a person or persons designated by the board. The board shall require a suitable and adequate bond from all persons designated to sign such orders conditioned for the proper handling of all such disbursements.

All purchases by the board shall, insofar as possible, be placed with business concerns located within the county for which such board is appointed and shall be spread equitably among business concerns.