Previously members of a unit of the Alliance Employees' Union, an indepedent union, employees of PSAC headquarters and their regional colleagues of the unit, were looking for a national union that would offer additional support and membership in the Canadian Labour Congress.
A campaign was mounted with the support of CEP, now Unifor. The campaign was successful and CEP (now Unifor) became the bargaining agent for these PSAC employees in June of 2010.