ADR 38/05 – Trailer Brake Certification

We would like to remind all trailer manufactures and certifiers of upcoming deadlines regarding ADR 38/05 Trailer Brake certification.

As a recap, the arrangement that was put in place by the Department of Transport, Regional Development and Communications is outlined in the “What’s New” section of the RVCS website dated 22nd of October 2019.

To ease the administrative transition to ADR 38/05, the Department put in place the ability to roll over ADR 38/05 applications as outlined in the advice mentioned above.

Where ADR 38/05 submissions have been rolled over, the advice mentions that if the application meets certain criteria the associated calculations must be resubmitted for that application.

The bulletin dated 22nd October 2019, outlines that circumstance:
“ However, if SARN data has changed since ADR 38/04, then additional calculations are required to be provided for trailer approvals when braking calculations fall within five percent of the upper or lower boundary limits, as defined by Figure 1 of ADR 38/05.

“If additional brake calculations are required for trailer IPAs, they must be submitted and approvals corrected before the manufacturers exercise the opt in arrangement under the RVSA. These supplementary brake calculations are not required to be submitted before the 1st November 2019 rollover under MVSA.”

Only applications where the calculations fall within the above criteria, must be re-submitted.

HVIA would like to remind members that the deadline for submitting and having these calculations or additional testing done, must be submitted and approved by the 30th April 2020 .

This is indicated in the bulletin dated 6th September 2019 also in the “What’s New” section of the RVCS website.

If you are intending to exercise the “opt in” arrangement under the RVSA, you must submit these calculations (or test results) prior to opting in, irrespective of the deadline.

If you have any questions, please contact our CTO, Paul Caus on 0437 901 669 or

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