Drink driving & the law

What is the Legal Blood Alcohol Limit?

0.049 BAC (Blood Alcohol Concentration) and below is considered the legal limit for most drivers.

Learners, provisional, probationary, unlicensed, disqualified, truck, bus and taxi drivers must drive with a zero blood alcohol concentration.

What can I be charged with?

There are three drink-driving offences as detailed in The Road Traffic Act 1961 which you can be charged with.

  • DUI(Driving under the influence of alcohol and drugs)
  • PCA(driving with a prescribed concentration of alcohol)
  • Refusing a breath test(refusing to comply with directions in relation to a breath test)

Driving under the Influence (DUI)

A person who drives, or attempts to drive a vehicle while so much under the influence of alcohol (or any other drug) as to be incapable of effectively controlling the vehicle is guilty of the offence of driving under the influence.

You can be charged with DUI even if under the legal limit of 0.050.

DUI is not the same as driving with the prescribed concentration of alcohol (PCA) and it is possible to be convicted of driving under the influence of alcohol even if the blood alcohol level is less than 0.050. It is possible to be convicted of driving under the influence with a blood alcohol level of 0.040. For the purposes of this offence, a person is deemed to be incapable of exercising effective control of a vehicle if any physical or mental faculty is lost or appreciably impaired.

OffenceFineLicence DisqualificationDemerit Points
First$500-$1200 or imprisonment for no more than 3 monthsYes, of not less than 12 months6 incurred
Subsequent$700-$2500 or imprisonment for no more than 6 monthsYes, of not less than 3 years6 incurred

Driving with a Prescribed Concentration of Alcohol (PCA)

A person who drives or attempts to drive a motor vehicle whilst there is more than the prescribed concentration of alcohol in their blood is guilty of the offence of exceeding prescribed concentration of alcohol.

The Prescribed Concentration of Alcohol (PCA) for holders of an unconditional licence is 0.050 Blood Alcohol Concentration (BAC). Learner, provisional, probationary, unlicensed, disqualified, truck, bus and taxi drivers must drive with a zero blood alcohol concentration.

OffenceBACFineLicence
Disqualification
Demerit Points
First0.050-0.079Up to $700 ‘on the spot’ $440Not mandatory4 incurred
0.080-0.149$500-$900Automatic of not less than 6 months5 incurred
0.150 or Over$700 - $1200Automatic of not less than 12 months6 incurred
OffenceBACFineLicence
Disqualification
Demerit Points
Second0.050-0.079Up to $700 ‘on the spot’ $440Automatic of not less than 3 months4 incurred
0.080-0.149$700-$1200Automatic of not less than 12 months5 incurred
0.150 or Over$1200-$2000Automatic of not less than 3 years6 incurred
OffenceBACFineLicence
Disqualification
Demerit Points
Third & Subsequent0.050-0.079Up to $700 ‘on the spot’ $440Automatic of not less than 6 months4 incurred
0.080-0.149$1100-$1800Automatic of not less than 2 years5 incurred
0.150 or Over$1500-$2500Automatic of not less than 3 years6 incurred

What happens if I refuse a breath test?

It is an offence to refuse to exhale into a breath testing apparatus used for an alcotest or breath analysis when directed to do so by police.

The police may stop and test any driver of a motor vehicle that approaches a driver testing station. They also have the ability to stop and breath test any person who they reasonably believe has:

  • driven; or
  • attempted to put a motor vehicle in motion: or
  • acted as a Qualified Supervised Driver for a holder of a permit or licence.
OffenceFineLicence DisqualificationDemerit Points
First$700-$1200Automatic of not less than 12 months6 incurred
Subsequent$1500-$2500Automatic of not less than 3 years6 incurred

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