The Efficiency Decoration, post-nominal letters TD for recipients serving in the Territorial Army of the United Kingdom or ED for those serving in the Auxiliary Military Forces, was instituted in 1930 for award to part-time officers after twenty years of service as an efficient and thoroughly capable officer. The decoration superseded the Volunteer Officers' Decoration, the Colonial Auxiliary Forces Officers' Decoration and the Territorial Decoration. In the British Commonwealth, the decoration was gradually superseded by national decorations in some member countries, in Canada by the Canadian Forces Decoration in 1951, in the Union of South Africa by the John Chard Decoration in 1952 and in Australia by the Reserve Force Decoration in 1982. In the United Kingdom, the decoration was superseded by the Volunteer Reserves Service Medal in 1999. New Zealand continues to award the Efficiency Decoration (New Zealand) and is one of a few countries still to do so. Origin In 1892 the Volunteer Officers' Decoration was instituted as an award for long and meritorious service by officers of the United Kingdom's Volunteer Force. In 1894, the grant of the decoration was extended to officers of volunteer forces throughout the British Empire by instituting a separate new decoration, the Volunteer Officers' Decoration for India and the Colonies. The Volunteer Officers' Decoration for India and the Colonies was superseded in 1899 by the Colonial Auxiliary Forces Officers' Decoration. In the United Kingdom, the Volunteer Officers' Decoration was superseded by the Territorial Decoration in 1908, but it continued to be awarded in a few Crown Dependencies until 1930. Institution The Efficiency Decoration was instituted by Royal Warrant on 23 September 1930 as a long service award for part-time officers of the Territorial Army of the United Kingdom and of the Auxiliary Military Forces of the British Dominions, Colonies and Protectorates and India. It superseded the Volunteer Officers' Decoration, the Colonial Auxiliary Forces Officers' Decoration and the Territorial Decoration. The decoration bore a subsidiary title to denote whether the recipient qualified for its award while serving in the Territorial Army or in one of the other Auxiliary Military Forces of the Empire. The subsidiary title was inscribed on the bar-brooch of the decoration, "TERRITORIAL" in respect of the Territorial Army or the name of the applicable country in respect of other Auxiliary Military Forces. When the medal was awarded to Territorial Army officers, it is officially known as the Efficiency Decoration (Territorial).