Independent Nationwide Network
Fully Accredited Alcohol Interlock Systems
Call Our Support Line: 1300 881 005

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
February 15, 2024

Newcastle Auto Electrical – Unavailable for Servicing

Newcastle Auto Electrical are temporarily unable to complete interlock servicing. We apologise for any inconvenience caused.

We have alternate locations for your servicing needs. Please contact Guardian Interlock on 1300 881 005 directly if you require further assistance.

Alternate Locations

Weston Smash & Service Centre
37 Government Rd, Weston
Ph. 02 4937 5566
Singleton Auto Electrical
18 Macquarie St, Singleton
Ph. 02 6572 4188
Auto Parts Direct
10/9-11 Johnson Rd, Tuggerah
Ph. 4351 0345

Latest News

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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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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