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RegsUP regulatory reference
UN ECE R20 — H4 Headlamps · 03
Current store editionReview H4 headlamp provisions for your headlamp design and assessment work.
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UN ECE R20
Put this regulation into context.
Review H4 headlamp provisions for your headlamp design and assessment work.
Edition and file
UN ECE R20 · 03 · English PDF · 70 pages in total · 57 pages containing regulatory text.
What your purchase includes
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?
New R20 approvals for new vehicles are no longer granted. Replacement headlamps for vehicles in use may be approved under the current or an earlier series.
- R20 covers headlamps using H4 halogen lamps.
- The general stop on new approvals took effect on 21 March 2002; replacement headlamps for vehicles in use are excepted.
Identify the vehicles in use for which your replacement headlamp is intended.
What is the latest level, and how long can I use it?
The latest text is the 03 series. The current or an earlier series may be used for replacement approvals.
- This route is limited to replacement headlamps for vehicles in use.
- An existing approval’s validity depends on its issue date and the conditions below.
Make the replacement-part scope explicit in your approval application.
Do I need to update my existing approval, and by when?
R20 approvals granted before R112 entered into force on 21 September 2001 and their subsequent extensions remain valid indefinitely.
- Later extensions of earlier-series approvals are also protected.
- Replacement headlamps may continue to be fitted or used on vehicles in use.
Notify the granting authority if you change the headlamp type so it can determine the necessary extension.
Changing the store language does not translate the PDF. This is a RegsUP reference edition, not an official publication or approval certificate.
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