Mich. Comp. Laws § 18.1431

Sec. 431. The director shall assign the accounting for activities and programs established by the legislature to funds and classify each fund into fund types in accordance with generally accepted accounting principles. The director may, in consultation with the chief executive officers of state agencies significantly involved in the operation of funds, change the classification of funds when the operation of the fund changes or when there is a change in the application of generally accepted accounting principles.