The Anglican Church of Canada has been engaging with the issue of homosexuality and same sex unions since 1976. You can read a chronology here.
The Diocesan Synod of the Diocese of New Westminster first requested Bishop Michael Ingham to authorise clergy to bless covenanted same-sex unions in 1998. It made the same request in 2001 and 2002. In 2003 Bishop Ingham issued a rite of blessing of committed same sex unions for use in the diocese. Currently, the dioceses of Niagara and Montreal also extend the blessing of civil marriages to same-sex couples and Ottawa and Toronto are developing proposals.
Integrity Canada is a national network of organisations and friends working towards the full inclusion of gay and lesbian people in the life of the Anglican Church of Canada. The first Integrity chapter in Canada was founded in 1975. Integrity Canada now has chapters in Calgary, Fredericton, London, Montreal, Niagara, Nova Scotia, Ottawa, Saskatoon, Toronto, Vancouver and Winnipeg with contacts in Regina and Prince Rupert.
On July 20, 2005, Canada became the fourth country in the world to legalise same-sex marriage nationwide with the Civil Marriage Act.