Mandatory Alcohol Interlock Program

From February 2015, all drivers convicted of a repeat or serious drink driving offence will receive an interlock order that requires them to participate in the Mandatory Alcohol Interl​o​ck Program (unless the court determines an exemption applies). 

Interlocks are electronic breath testing devices linked to the ignition system of cars, motorcycles and heavy vehicles.

Drivers must provide a breath sample that the interlock analyses for the presence of alcohol before the vehicle will start. If a positive sample is detected, the vehicle will not start. Randomly timed breath tests must also be passed during a journey.​

More information on the Mandatory Alcohol Interlock Program and the interlock exemption order is available on the Roads and Maritime Services website​. ​​