A central government
also known as a national government
, union government
and in federal states
, the federal government
, is the government
at the level of the nation-state
. The structure of central governments varies from institution to institution. Many countries have created autonomous regions by delegating powers from the central government to governments at a subnational level, such as a regional, local, or state level. Based on a broad definition of a basic political system, there are two or more levels of government that exist within an established territory and govern through common institutions with overlapping or shared powers as prescribed by a constitution
or other law.
Usual responsibilities of this level of government which are not granted to lower levels are maintaining national security
and exercising international diplomacy
, including the right to sign binding treaties
. Basically, the central government has the power to make laws for the whole country, in contrast with local governments
. For definition of levels of government see also general government
Generally, the difference between a central government and a federal central government is that the autonomous status of self-governing regions exists by the sufferance of the central government and are often created through a process of devolution
. As such they may be unilaterally revoked with a simple change in the law. An example of this was done in 1973 when the Northern......