Each province and territory across Canada must pass its own Interjurisdictional Support Orders Act (ISO Act). The following list tells you when the ISO Act came into effect in each province.
- Alberta – January 31, 2003
- British Columbia – January 31, 2003
- Manitoba – January 31, 2003
- New Brunswick – February 1, 2004
- Newfoundland and Labrador – March 31, 2003
- Northwest Territories - August 15, 2004
- Nova Scotia – March 31, 2003
- Nunavut – June 12, 2003
- Ontario – March 31, 2003
- Prince Edward Island – May 10, 2003
- Québec - To be announced
- Saskatchewan – January 31, 2003
- Yukon – January 1, 2006