SINGLE Citizenship.Federalism is a single mixed SYSTEM under a single political system where there is a central government and the division of powers of several provincial governments. Both can decide and implement schemes independently as PER requirement.Federation is made up of the Latin word ‘Foedus’ which means treaty or agreement.It means to say that a political system is made under a treaty or agreement between two or more units.America is said to be the oldest federal system in the world.The main features of the Federal System are as FOLLOWS:-Dual government polityDivision of powers between VARIOUS levelsRigidity of constitutionIndependence judiciaryDual citizenshipBicameralism