Ontario ranked 1st, with a grade of A-, among all provinces and territories for its impaired driving laws. It ranked 2nd in 2006 when the last full Rating the Provinces and Territories Report was produced.

Ontario's impaired driving reforms include: a comprehensive graduated licensing program; 3-day administrative license suspensions for drivers with blood alcohol concentrations over .05%; a comprehensive vehicle impoundment program; and a mandatory alcohol interlock program for all federal impaired driving offences.

Rating the Provinces and Territories identifies legislative initiatives that will make the most significant reductions in alcohol and drug-related crashes, fatalities and injuries. It grades each jurisdiction on their laws in the following priority areas: licensing; license suspensions and revocations; and vehicle sanctions and remedial programs.

The full 2009 Report:

1. Ontario: A-
2. Manitoba: A-
3. Prince Edward Island: B
4. Nova Scotia: B
5. Saskatchewan: B
6. Alberta: B-
7. British Columbia: C+
8. Newfoundland and Labrador: C+
9. Quebec: C-
10. Yukon: C-
11. Northwest Territories: D+
12. New Brunswick: D+
13. Nunavut: F