Home/Resources/Regulation Library/R-148
ECE R-148
Light-Signalling Devices
Uniform provisions concerning the approval of light-signalling devices. Summary for orientation; the official text prevails.
Applies to
M, N, O, L
Topic
Lighting & signalling
Framework
UN ECE · EU
Velocert services
Component · Series · Individual
Overview
This regulation defines photometric, colorimetric and installation requirements for lighting and light-signalling devices.
Approval combines laboratory photometry, installation checks on the vehicle and documentation review.
Scope
The regulation applies to the following vehicle categories:
M
Passenger vehicles
N
Goods vehicles
O
Trailers and semi-trailers
L
Two- and three-wheelers, quadricycles
Key requirements
Photometric tests
Light intensity distribution measured according to the regulation's test points.
Installation
Position, orientation and visibility of devices verified on the vehicle.
Documentation
Drawings and optical specifications reviewed.
Marking
Approval marking on the device confirmed.
Timeline
Adopted
Regulation in force under the UN ECE framework
Ongoing
Amendments and supplements published by WP.29
Project start
Applicable series confirmed during the scope call
Approval with Velocert
Velocert plans and witnesses the required tests and prepares the technical report for the approval authority.
This page is a summary for orientation only. Always refer to the official UNECE text and its amendments for legal requirements.