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UN ECE R9 — Three-Wheeled Vehicle Noise · 08 / S3
Current store editionReview three-wheeled vehicle noise provisions for your assessment programme.
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UN ECE R9
Put this regulation into context.
Review three-wheeled vehicle noise provisions for your assessment programme.
Edition and file
UN ECE R9 · 08 / S3 · English PDF · 52 pages in total · 39 pages containing regulatory text.
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A fixed English PDF edition, personalised with the buyer’s licence details. Delivery follows payment confirmation and order release. Future editions, platform membership and individual consulting are not included.
Approval and application context
The notes below help you assess the scope and conditions. The regulatory text and its exceptions govern your application.
I am applying for approval for the first time. Which level can I use, and what is the deadline?
You may apply under the 08 series · Supplement 3. Permission to grant an approval to an earlier series does not require other countries to accept it.
- R9 covers sound-emission approval of L2, L4 and L5 vehicles.
- The general duty to accept earlier-series approvals ended on 1 September 2024; approvals for vehicles or systems unaffected by the 08-series changes remain excepted.
Prepare your application to the 08 series · Supplement 3; confirm acceptance with your approval authority if using an earlier series.
What is the latest level, and how long can I use it?
The latest level is the 08 series · Supplement 3, in force from 11 January 2026. No general expiry date is set for this level.
- ISO 10844:2021 may be used for the test track.
- ISO 10844:2014 tracks remain acceptable until 11 January 2031; this is not an expiry date for all vehicle approvals.
State the track standard in your test plan and account for the transition period for the 2014 standard.
Do I need to update my existing approval, and by when?
Supplement 3 does not set a general deadline to update your entire existing approval. Check the test-track and earlier-series conditions separately.
- Extensions of earlier-series approvals continue; acceptance is subject to paragraph 11.
- For conformity of production, renew the manufacturer declaration; the applicable additional sound tests must not exceed Annex 6 limits by more than 1.0 dB(A).
Notify your approval authority if you change the vehicle or exhaust type so it can determine whether further testing or an extension is needed.
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Related PDFs
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UN ECE R63
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UN ECE R59
Replacement Exhaust Silencing Systems · 03
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Review replacement exhaust-silencing-system provisions before assessing your replacement component.
UN ECE R41
Motorcycle Noise · 06 / S1
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Review motorcycle noise provisions when preparing your vehicle assessment.
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