The law that applies to all divorces filed in Canada. No matter which province or territory your divorce is started in, it is dealt with under the Divorce Act. The Divorce Act applies to heterosexual and same-sex couples who were married and are now divorcing.
When you are divorced, and in the future need to apply to the court to change your Corollary Relief Order (the order issued as part of your divorce), you will often still use the Divorce Act to apply for this change (‘variation’).