To evaluate existing alcohol policies in Canadian provinces and territories (P/Ts) against evidence-based best practice policies aimed at reducing alcohol-related harms and improving population health. Alcohol policies in Canadian P/Ts were evaluated across 11 policy domains. The scoring rubric was formulated based on the latest evidence-based public health criteria. Policy domains were weighted to reflect their relative effectiveness and scope. Data were collected by the research team, reviewed and validated by government contacts, and scored by designated team members. Scores were calculated for each P/T and policy domain. Additionally, a Best Existing Policies (BEP) score was calculated to demonstrate the score that could be achieved by any P/T if they adopted all the best policies currently in place somewhere in Canada. Scored against best practice policy criteria, the average score across all P/Ts was 37