A constitution can be either unitary or federal. A unitary system is governed constitutionally as one single unit, with one constitutionally created legislature. but in the federal constitution, there is a division of powers between the federal and the state governments. Here are some differences between the federal government and the unitary government.
|Federal government||Unitary government|
|The system has multiple hierarchy levels, with both the central authority and the states (or provinces) both being sovereign.||There is no hierarchy of sovereign powers.|
|The central or national rules override the state rules.||States have no authority to pass their own laws, and the central or national government can order the states to do anything.|
|There is a balance between the levels of government.||The federal government has a huge percentage of power. Examples include Japan and Saudi Arabia.|
|Power and responsibilities are shared between national and local levels.||Power is placed in one central governing system|