Alcohol, Drugs, and Impaired Driving
Impaired driving is one of the biggest killers on Nova Scotia roads, and the test checks the legal limits, the myths, and the consequences.
Limits
- The Criminal Code threshold is 0.08 blood alcohol concentration, and refusing a breath demand is itself an offence.
- Nova Scotia's roadside program suspends your licence immediately in the 0.05 to 0.08 range, without any conviction.
- Novice drivers in the graduated program have zero tolerance: any alcohol at all is a violation.
- Cannabis, illegal drugs, and some prescription and over-the-counter medicines impair driving, and mixing them multiplies the effect.
How alcohol works
- Alcohol clears at roughly one standard drink per hour, and nothing speeds that up.
- Coffee, cold showers, food, and exercise do not sober you up; they only make you feel awake.
- Impairment begins well below 0.08: reaction time, judgment, and vision decline first.
- An empty stomach, fatigue, and low body weight raise your blood alcohol faster.
Worked example
Four drinks leave you estimating 0.08 two hours after your last one. Elimination is about 0.015 per hour, so roughly 0.03 has cleared and you may still be near 0.05, which is the suspension line in Nova Scotia and still impaired. The only reliable plan is a designated driver, transit, or a taxi.
Traps
- 'I only had two, I feel fine' ignores the legal limit entirely.
- Assuming a morning-after drive is safe.
- Treating a roadside suspension as the whole penalty; a criminal charge can follow separately.
- Believing a prescription label makes a medicine safe to drive on.