All executive and administrative offices, agencies and instrumentalities of the executive branch of state government and their respective functions, powers and duties, except for the office of governor and lieutenant governor, and the governing bodies of institutions of higher education provided for in this constitution, shall be allocated by law among and within not more than 20 principal departments. They shall be grouped as far as practicable according to major purposes.
Principal departments
Mich. Const. art. V, § 2, under Executive Branch.
Mich. Const. art. V, § 2
Principal departments