Australian Trailer Builder Requirements
Since the 1st of July 2023, all trailers manufactured and imported into Australia must comply with the ADR VSB1 requirements and in particular Chapters 9 - Couplings, Drawbars and Chains (Mechanical Connections between Vehicles) A link to the ADR VSB1 is here - see chapter 9 or look up ADR62
ADR62 Key Points in Simple Terms:
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Testing Requirements for Drawbars (Front Trailer Connection Part)
- Drawbars must be tested by an approved facility (not just the manufacturer).
- You cannot self-test or do in-house testing for compliance.
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Using Engineering Calculations (Like Computer Simulations - FEA)
- You can use engineering calculations (such as Finite Element Analysis - FEA) to prove compliance.
- These do not need to be done by an approved testing facility but must go through an official approval process.
- If a previous FEA model was already approved, it can be reused for similar trailer designs.
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Safety Chain Attachments (For Keeping the Trailer Connected if It Detaches)
- Must be physically tested at an approved facility.
- Engineering calculations cannot replace actual testing for these attachment points.
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Government Guidance & Legal Disclaimer
- The Department of Infrastructure has official guidance on ADR 62 compliance.
- This webpage is general information only—manufacturers need to do their own research and ensure they meet all regulations.
Bottom Line:
If you're building or selling a trailer in Australia, you need to follow ADR 62 rules for tow connections. Some parts (like safety chains) must be tested, while others (like drawbars) can use engineering calculations if approved. Make sure to check official government sources for full compliance details.
At Trailersauce, we can provide you with drawbar calculations for your Trailersace designed trailer, but we are unable to assist with safety chain testing - this will need to tested at an approved facility prior to the trailer being VIN'ed and road registered.
If you are building a trailer or considering using a set of Trailersauce plans, please do your due diligence and check with your local vehicle registration governing body before progressing!
