Queensland did decide to formally join the association with one delegate member the following year, and the constitution was amended in 1906, so that New South Wales, South Australia and Victoria would each have three permanent representatives, and Queensland one representative. In 1907 Tasmania was also permitted to send a single representative, and Western Australia did likewise in 1913. Changes to this structure were made in 1914 and 1974 respectively when Queensland and Western Australia formally increased their representation to two each.