Many cities were reorganised into districts by the Local Government Commission in 1989 under the Local Government Act 1974, for example, Timaru. The most recently proclaimed city is Tauranga, which became a city, for the second time, from 1 March 2004. Another former city is Rotorua. Some present cities, such as Christchurch (1862 and 1868) and Invercargill (1930 and 1991), have been declared cities more than once.