What is a system of government in which powers are divided between a central government and several regional governments is called?

The system of government in which powers are divided between a central government and several regional governments is called a federal system. In a federal system, both levels of government have their own specific powers and responsibilities, as outlined in a constitution. This division of powers helps to prevent the concentration of authority in one central government and allows for a balance of power between the different levels of government. Examples of countries with a federal system of government include the United States, Germany, and Australia.