galleries. The building is , and added storage for more than of paper and audio-visual records. On 21 September 2018, the National Archives Preservation Facility was officially renamed the Peter Durack Building after the Hon Peter Durack QC, who introduced the bill creating Australia's National Archives in 1983. In addition to the National Office of Canberra in the Australian Capital Territory (ACT), the National Archives has offices and reading rooms in the capital city of each state and the Northern Territory: South Australia - Adelaide Queensland - Brisbane Northern Territory - Darwin Tasmania - Hobart Victoria - Melbourne Western Australia - Perth New South Wales - Sydney Collections The National Archives of Australia's collection of 40 million items covers records pertaining to the government of Australia, including Federation, Governors-General, Prime Ministers, Cabinet and Ministers. Among the most popular with the public are defence service and immigration records which often contain valuable family history. The Archives' repositories are not open to the public but items can be requested for digitisation or for viewing in reading rooms. Most records over 26 years old (gradually reducing to 20 years) are released for public access on request. However some have certain information exempted from access. These exemptions may include documents relating to defence and security and sensitive personal information. Cabinet notebooks have a longer closed period, gradually decreasing from 50 to 30 years by 2021. Access to items of cultural sensitivity to Indigenous Australians may also be restricted. There are several notable collections held by the National Archives of Australia, including: founding documents, including the Royal Commission of Assent, the Constitution Act and other records created when the six colonies federated to create the Commonwealth of Australia on 1 January 1901 World War I and World War II service records. Some 376,000 service records for men and women who served in World War I have been digitised and are available online at the Discovering Anzacs website. the Griffin drawings – Walter Burley Griffin and Marion Mahony Griffin's winning entry for the design of Australia's federal capital Mildenhall glass plate photographs taken by government photographer Jack Mildenhall – the 7700 images record Canberra during the 1920s and 1930s more than 34,000 immigration photographs copyright, patent and trademark registration records Recent modernisation efforts and collaborations "Discovering Anzacs" digital partnership In 2014, the National Archives of Australia, in partnership with Archives New Zealand, created the digital repository