When it comes to safe driving, most people know that L and P plate drivers must have a blood alcohol concentration (BAC) of zero. But what many overlook is that a zero BAC isn’t just for new drivers — it’s a smart and sometimes necessary choice for a much broader group of people.
Whether you’re a parent, professional driver, or simply want to protect yourself and others on the road, here’s why more Australians are aiming for 0.00%.
Who’s legally required to have zero BAC?
While BAC limits vary across states, several groups are required by law to have a BAC of 0.00% when driving:
- Learner and probationary drivers
- Drivers of heavy vehicles such as trucks and buses
- Commercial drivers (e.g. taxi, rideshare, courier)
- Drivers transporting dangerous goods
- Certain employees under employer-enforced zero tolerance policies
These requirements exist for a good reason: even small amounts of alcohol can impair your ability to drive safely.
📖 Explore the drink driving penalties in Australia by state!
Why zero BAC matters — even if you’re not legally required
You don’t have to be on a restricted licence or driving a truck to be affected by alcohol. Even at low levels, alcohol can impact:
- Reaction time
- Coordination
- Decision-making and risk assessment
And despite how you might feel the morning after a night out, alcohol can remain in your system longer than you think. You could still be over the legal limit the next day — and wouldn’t know unless you test.
📖 Explore how long alcohol stays in your body.
Choosing to maintain a zero BAC, even when not required, helps eliminate any guesswork and supports smarter decisions.
Workplace safety and zero tolerance
In high-risk industries like mining, construction, transport, and aviation, many employers require a 0.00% BAC on the job — even if it’s not mandated by road laws. These policies align with WHS obligations and are crucial for:
- Preventing accidents and liability
- Protecting workers and the public
- Maintaining productivity and trust
Personal reasons to aim for zero
Even outside legal or workplace rules, there are plenty of reasons someone might choose to go alcohol-free before driving:
- Being a role model for kids or young drivers
- Building or rebuilding trust with family or partners
- Avoiding unnecessary risk, especially when tired or medicated
- Supporting personal goals like sobriety or reduced alcohol use
How breathalysers help drivers stay confident and in control
The reality is, many people think they’re under the limit — until they test and find out otherwise.
A personal breathalyser is an easy, affordable way to check your BAC before getting behind the wheel. Whether it’s the morning after a night out or after a quiet drink at dinner, testing first can be the difference between safety and a serious offence.
🔍 Explore our range of AlcoSense personal breathalysers — accurate, portable, and easy to use.
Zero is a smart choice
Zero BAC isn't just for L and P platers — it’s for anyone who wants to drive with clarity, confidence, and safety. Whether you're navigating workplace rules or making personal decisions, having 0.00% BAC helps you stay protected and in control.
