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Fully Accredited Alcohol Interlock Systems
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State Interlock Programs/Schemes

Discover Each Australian State & Territory’s Alcohol Interlock Programs and Schemes. In Australia, each state provides direction on how interlock programs operate. Important factors can differ between states, click here to learn more about the rules for each Australian state & territory’s Alcohol Interlock Programs and Schemes.

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Private Interlock Systems

Find Out How to Install a Private Alcohol Interlock System. If you are looking for a new Private Interlock System for your employees, follow the link below to learn more about the products available to get you started.

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About Us

Guardian Interlock manages alcohol interlock programs/schemes on behalf of various state transport authorities in Australia and offers Interlock solutions to safety conscious businesses and individuals.

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Service Centres

Guardian Interlock has a vast network of Service Centres across Australia for interlock installation, interlock services and interlock removal. To find your nearest Service Centre, click on your state of residence.

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Service Centre Login

Login to access Guardian’s Service Centre portal to order stock or access Documentation. If you do not know you login please contact us.

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News
October 8, 2015

Call for young drivers to be breath tested before driving

Breathalyser interlocks should be mandatory for P-plate drivers to help reduce car crashes, a national road safety report says.

The recommendation by Austroads is based on data that shows P and L-plate drivers are eight times more likely to have an illegal blood alcohol level when involved in a crash compared to fully licensed drivers.

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Latest News

March 26, 2026

Living With an Alcohol Interlock: Practical Tips for Day‑to‑Day Driving

If you have been ordered onto an alcohol interlock program, we know it can feel overwhelming at first. There is a lot to take in, and the idea of blowing into a…
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February 26, 2026

First Time Caught Drink Driving: Will You Need an Interlock Device?

Being caught drink driving for the first time is stressful and confronting. As well as the court process and fines, many drivers want to know whether they will be required to fit…
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January 28, 2026

What To Expect In Your First Month On An Alcohol Interlock Program

Starting an alcohol interlock program can feel overwhelming, especially in the first few weeks when everything is new.  Guardian Interlock focuses on making that first month as clear and structured as possible…
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