Federal

24 countries or other entities

The constitution establishes the state as a federation of states or provinces with their own legislatures, or, where it does not say, divides power so that the units' powers cannot be changed without their consent.

Source: Watts (2008), Comparing Federal Systems, 3rd ed. (McGill-Queen's University Press), applied where the constitution does not designate the state federal or unitary

24 countries and 0 other entities