DCCA meaning in Governmental ?

The District of Columbia Court of Appeals is the highest court of the District of Columbia, in the United States. Established in 1970, it is equivalent to a state supreme court, except that its authority is derived from the United States Congress rather than from the inherent sovereignty of the states. The court is located in the former District of Columbia City Hall building at Judiciary Square. The D.C. Court of Appeals should not be confused with the District's federal appellate court, the United States Court of Appeals for the District of Columbia Circuit. The D.C. Court of Appeals and the Superior Court of the District of Columbia comprise the District's local court system.