Significant updates to the Divorce Act in March 2021 shifted the focus from "rights" to "responsibilities": Fact Sheet - Divorce - Department of Justice Canada
: You and your spouse have lived "separate and apart" for at least one year. This is the most common ground (used in roughly 95% of cases) and is considered "no-fault". Adultery : One spouse has committed adultery.
: One spouse has treated the other with physical or mental cruelty, making continued cohabitation intolerable.
In Canada , divorce is governed by the federal Divorce Act , which applies uniformly across all provinces and territories. While the grounds for divorce are federal, the specific procedures and forms for filing vary by province.