Year	Information
1940’s	The PSA affiliated to the NSW Labor Council, which is now called Unions NSW.
1949	Dissatisfaction with wage stagnation continuing in the post-war period, and a perceived lack of support from the PSA sees clerical members of the PSA form a break-away union – the NSW Public Service Clerical Officers’ Association (COA). The COA was refused registration with the NSW Industrial Registrar, and the COA amalgamated with the PSA in 1953.
1948	Women are finally permitted to sit for NSW public service exams.
1946	The PSA joins with 53 other Australian unions to campaign for the 40 Hour Week. It took until 1948 for the Commonwealth Arbitration Court to approve a 40-hour, five-day working week.
1945	The end of WWII sees public sector employment and PSA membership grow substantially. The Public Works Department in particular begins a period of doubling its staff members; a department with strong union sentiment during this period.
1644	Jean Arnot was awarded the PSA gold medal for her tireless work on Women’s Council
1944	The PSA’s campaign to establish the Crown Employees Appeal Board is successful.