New driver – Zero tolerance
New Driver? Your BAC Limit Might Be Zero
Learner and provisional licences come with a strict rule — and most new drivers underestimate it
In Australia, Canada, and the United Kingdom, holding a learner or provisional licence comes with one non-negotiable rule: zero alcohol. Not “below 0.05%” or “just one drink.” Zero. Any measurable BAC while driving on a learner permit or P-plate is an offence — regardless of your age.
Many new drivers know this in theory. Most underestimate how quickly even a small amount of alcohol can push them over a 0.00% limit.
Australia: L-Plates and P-Plates
Australia’s graduated licensing system has two stages before a full licence. The BAC rule is the same at both stages, and it’s the same across all eight states and territories:
| Licence Stage | BAC Limit | Notes |
|---|---|---|
| Learner (L-plates) | 0.00% | Supervised driving only |
| Provisional P1 | 0.00% | Uniform nationwide — applies at any age |
| Provisional P2 | 0.00% | Uniform nationwide — applies at any age |
This applies at any age. A 28-year-old who recently moved to Australia and is completing their P-plate stage has the same 0.00% limit as a 17-year-old learner. The licence stage determines the rule, not the age.
Canada: Novice Driver Rules
Each Canadian province runs its own graduated licensing program, but the zero alcohol rule is consistent across the country:
| Province | Licence Stage | BAC Limit |
|---|---|---|
| Ontario | G1 / G2 | 0.00% |
| British Columbia | L / N (Novice) | 0.00% |
| Alberta, Saskatchewan, Manitoba, Québec | Novice / Learner stages | 0.00% |
Getting caught with any alcohol on a novice licence in Ontario means an immediate 30-day suspension, a $250–$450 fine, and an insurance rate impact that lasts for years.
United Kingdom: Provisional Licence
In the UK, all learner drivers hold a provisional licence and must be supervised by a fully licenced driver aged 21 or over. The BAC limit for provisional licence holders is 0.00% — in England, Wales, Northern Ireland, and Scotland alike.
This is separate from the general driving limits (0.08% in England/Wales/NI, 0.05% in Scotland). Even in England where the standard limit is 0.08%, a provisional licence holder must be at zero.
Why “Just One Drink” Is a Myth Here
A standard drink raises BAC by roughly 0.02–0.03% in an average adult. For someone subject to a 0.00% limit, “one drink an hour ago” is not reliably safe. Metabolism varies significantly based on body weight, body composition, food intake, and individual factors. There is no reliable way to estimate it without a measurement.
The only number that guarantees you’re under a 0.00% limit is zero drinks. That’s the point of the rule.
How Alcophone Handles This
When you select a region in Australia, Canada, or the UK, Alcophone asks whether you hold a learner or provisional licence. If you do, it sets your legal threshold to 0.00% — meaning any BAC reading above zero triggers a warning immediately, not a green light.
It’s one toggle in the app. One tap and the thresholds recalibrate for your actual legal situation, not the general adult limit that applies to fully licenced drivers.
Whether you’re an Australian on their P2, a Canadian G1 holder, or a UK learner — Alcophone shows you the limit that actually applies to you.
More countries and languages coming soon
Support for more regions means more drivers getting accurate, locally correct information. Stay tuned.
See the Limit That Applies to You
Alcophone sets the correct BAC threshold for your licence type and region — free on Google Play.
Alcophone provides BAC estimates only. It is not a breathalyzer and cannot measure your actual blood alcohol content. Never drive after drinking, regardless of what any app says. Must be 21+ to use. © 2026 SafeMetrics4U. All rights reserved.