Local government in New Zealand is done by regional councils, territorial authorities, and community boards. Their powers are set out in the Local Government Act 1974 and the Local Government Act 2002.
Most territorial authorities are in a regional council's area, with a few being split between two or more. A few, however, are in no regional council area and have their own regional powers and are known as unitary authorities.
Schedule 2 of the Local Government Act 2002 sets out the names of the local authorities with the specific regulatory document that defined the boundaries precisely and brought each into existence.