A Soviet Republic is a Republican state in which all, or at least most, political power is held by the Soviets - regional administrative and/or legislative councils who's members are workers, usually being either industrial or agricultural labourers of some kind. Despite popular belief, Soviet Republics are not inherently Socialist or Communist and were only adopted by the Bolsheviks of Russia following their initial foundation in certain parts of Eastern Europe. Soviets have the full capacity to be multi-party democratic legislative bodies and not all historical Soviet Republics have been Socialist. As such, the term Soviet Socialist Republic is usually applied to those Soviet Republics that are ruled by the Socialist faction.
Classically, the Soviet Republic has a hierarchy of Soviets varying in power and size, ranging from local communal groups to a single Supreme Soviet at the head of the nation's legislature. Typically these Soviets are headed by a ceremonially Presidium, the Chairman (President) of which may be required to countersign any decree by the Supreme Soviet to make it effective.