The US Constitution assigns authority to the federal (national) government as a whole and to each of the branches of government. Those given to the federal government, in general, are referred to as
express(ed) powers.
Power is shared in a federal government. According to the US Constitution, certain authority is
delegated to various parts of the federal government, other authority is
reserved to the states or the people (see Tenth Amendment).
- Express(ed) Powers: Powers allowed to the federal government.
- Denied Powers: Powers explicitly denied to the federal government.
- Enumerated or Delegated Powers: Powers given to a branch of government.
- Implied or Inherent Powers: Unwritten powers logically related to an enumerated or delegated power. Also called unenumerated powers.
- Reserved Powers: Powers allowed to the states or the people.
- Concurrent or Shared Powers: Powers shared by the state and national government in a federal system.