Print

Alcohol ignition interlocks

Getting an interlock

About interlock devices

An interlock device is connected to a vehicle's ignition. To start the vehicle, the driver must provide a breath sample. The vehicle only starts if no alcohol is detected. A random breath sample may be requested during a journey.

The interlock records data including:

  • all breath samples (including when the vehicle doesn't start)
  • when the vehicle is used
  • interlock service information.

Note: A vehicle with an interlock device installed can be driven by others, such as family members. Whoever is driving will need to provide breath samples to the interlock to start and continue driving the vehicle.

If you are required to participate in the performance-based interlock program, you need to install an interlock with a camera.

The camera will take a:

  • reference photo when the interlock is first installed
  • photo each time a breath sample is taken.

WiFi-enabled interlocks may also be available if you participate in the performance-based program. If you have a WiFi-enabled interlock:

  • your data will be sent to us when you are in WiFi range
  • program notifications can be sent to you more quickly
  • you won't need to get your interlock serviced at the end of the interlock program for us to receive your final data

Woman breathing into interlock device in vehicle

Getting an interlock installed

You will need to complete steps 1, 2 and 3 before you can drive.

Step 1: Wait for your disqualification period to end

  • You can apply for your licence the day after your disqualification ends (or the date you are granted a restricted (work) licence).
  • You may also need to complete a drink driving short course.

Step 2:  Apply to get your driver licence

You will need to apply for your licence with an interlock condition at a transport and motoring customer service centre, a participating QGAP office or licence-issuing police station (in rural or remote areas of Queensland).

You will need to:

You will be issued with a receipt for a probationary licence with code 'I'. This will be your licence until you receive your physical card in the mail. If you have signed up to get emails we will email you when your licence is posted and send you a reminder when it's due to be renewed.

Your interlock must be installed before you drive.

Step 3: Get an interlock installed

After you get your licence you will need to have an interlock installed in the vehicle you want to drive. If you don’t own the vehicle but drive it, you must get permission from the owner to install the interlock.

Find an approved interlock provider and make an appointment to get your interlock installed. You will need to pay all installation costs. You can have an interlock on more than one vehicle if needed.

Vehicle nomination

At your appointment you will be asked to nominate which vehicle/s you want an interlock installed in. Your interlock provider will tell us which vehicle/s you nominate. You can only drive the vehicle/s you have nominated.

Help with interlock costs

On the performance-based interlock program, if you hold a valid Australian Government Healthcare Card or Pensioner Concession Card, your interlock provider will give you a 35% discount on the interlock costs.

On the time-based program, if you hold a valid Australian Government Healthcare Card, your interlock provider will give you a 35% discount on the interlock costs.

You must show your card to your interlock provider at each appointment.

Depending on your circumstances, you may be eligible for financial assistance to help with interlock costs.

Interlock breath test device

In this guide:

  1. Performance-based Alcohol Ignition Interlock Program
  2. Time-based Alcohol Ignition Interlock Program
  3. Getting an interlock
  4. Approved interlock providers
  5. Financial assistance for the Alcohol Ignition Interlock Program
  6. Exemptions in the Alcohol Ignition Interlock Program

Print entire guide