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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
August 23, 2019

NEW Guardian 2030 Interlock Device

On 1 May 2019. Guardian Interlock Systems Australasia Pty Ltd commenced supply of the Guardian 2030 Alcohol Interlock Device. This system and all associated alcohol interlock device services offered by Guardian Interlock Systems Australasia Pty Ltd are not associated with, sponsored by, approved by, licenced by and/or affiliated with ACS Corp Canada.

Latest News

December 19, 2025

Tips To Avoid Failed Or Positive Interlock Readings (Even If You Haven’t Been Drinking)

Unexpected interlock readings can be frustrating, especially when you haven’t had a drink and you’re doing everything right. Yet many drivers are surprised by how easily everyday habits, products, and routines can…
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December 10, 2025

Interlock Devices In Shared Vehicles: Legal and Practical Tips For Families and Carpoolers

For many Australian families and carpoolers, sharing a vehicle is second nature, essential for juggling busy lives. But when an alcohol interlock device is required by law, suddenly, the dynamics of using…
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November 3, 2025

The Difference Between An Alcohol Interlock & A Breathalyser

Drink driving continues to be a serious issue in Australia, contributing to approximately 30% of fatalities each year. With strict laws in place and lives on the line, monitoring alcohol levels before…
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