Local 1587 was established in 1979 with the certification of the Go Transit Bargaining Unit. Through the years, Local 1587 has gone on to certify and represent thousands of members across the Greater Toronto and Hamilton Area, as well as York Region and Barrie.
Local 1587 is affiliated with the Amalgamated Transit Union (ATU) Canada, the Ontario Federation of Labour, and the Toronto & York Region Labour Council. The ATU Canadian Council is the highest authority and voice in Canada for the Amalgamated Transit Union on all issues of Canadian interest. This includes legislation, political, educational, health and safety, cultural, and social welfare matters.