A federal parliamentary republic refers to a federation of states with a republican form of government that is, more or less, dependent upon the confidence of parliaments at both the national and subnational levels. It is a combination of the federal republic and the parliamentary republic.
Such republics usually possess a bicameral legislature at the federal level out of necessity, so as to allow for a set, often equal number of representatives of the subnational entities to sit in the upper house; however, the government, headed by a head of government, will be dependent upon the lower house of parliament for its stability or legitimacy.