The Public Service Alliance of Canada (PSAC; , AFPC) is one of Canada's largest national labour unions and the largest union in the Canadian federal public sector. PSAC members work in every province and territory, and also work abroad in embassies and consulates. Many of PSAC's some 200,000 members work for the federal public service, crown corporations, or agencies as immigration officers, fisheries officers, food inspectors, customs officers, national defence civilian employees, and the like. However, an increasing number of PSAC members work in non-federal sectors: in women's shelters, universities, security agencies and casinos. In Northern Canada, PSAC represents most unionized workers employed in the Yukon, Nunavut and the Northwest Territories. PSAC's National President is Chris Aylward. PSAC is headquartered in Ottawa with 23 regional offices across Canada. PSAC's Ottawa headquarters building, designed in 1968 by Paul Schoeler, is a notable example of modernist architecture in Ottawa. History PSAC was formed when the Civil Service Association of Canada, led by Calbert Best, and Civil Service Federation of Canada, led by Claude Edwards, agreed to merge. Claude Edwards was elected as the first PSAC president. PSAC's founding convention took place at Ottawa's Chateau Laurier in 1966. Bargaining PSAC signed its first collective agreements with Treasury Board in 1968. By 2015, the union was negotiating 316 separate collective agreements under federal, provincial and territorial jurisdictions. Strikes PSAC's first strike came in November 1971 against Defence Construction Ltd. In 1980, the PSAC's large CR bargaining unit, made up largely of women clerical workers, went out on in Canada's biggest single bargaining unit work stoppage. PSAC's 1991 general strike, the largest single union strike in Canadian history, brought job security improvements. Women in the union Most founding convention delegates were men. In 1967, PSAC began organizing secretaries, stenographers and typists. By 1976, PSAC had abolished the practice of tying a secretary’s salary to the rank of her boss (a practice known as "rug-ranking"), created an Equal Opportunities Committee to address women's issues and elected Aileen Manion, PSAC's first female national officer. Equality rights From 1981 onward, PSAC's Equal Opportunities Committee included all equity-seeking groups. In 1988, PSAC adopted a comprehensive human rights policy. Action committees for members with disabilities and racially visible members started in 1990. By 1999, the union started holding conferences for racially visible members, Aboriginal Peoples and workers with disabilities. In 2004, the first network of Aboriginal, Inuit and Metis members