Women: no more than 10 drinks/week; no more than 2 drinks a day on most days; no more than 3 drinks on any single special occasion in a safe environment.
Men: no more than 15 drinks/week; no more than 3 drinks a day on most days; no more than 4 drinks on any single special occasion in a safe environment.
Details below:
Source: Canadian Centre on Substance Abuse