Several districts form one region. On the other hand, one district is made of several municipalities, which are further divided into cadastral areas. The current districts exist since 1996, which at first had their own offices, but in 2004, they were abolished and replaced by the Circuit Offices, which are usually responsible for several districts (except for the Nové Zámky District, which has two Circuit Offices), reducing districts to a little more than statistical units.