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UN Regulation No. 148
Light-Signalling Devices (LSD)

UN Regulation on uniform provisions concerning the approval of light-signalling devices (lamps) for power-driven vehicles and their trailers

Adopted during the March 2019 WP.29 session, this regulation supersedes the previous UN Regulations on the approval of direction indicators and other light-signalling devices (UN Regulations R4, R6, R7, R23, R38, R50, R77, R87, and R91).

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Revisions and Amendments
Series of Amendments and Supplements

Application of the Regulation

Contracting Parties applying UN R148

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Development of the Regulation

Pending Changes to UN R148

Latest Documents

10 Mar 2020
UN R148: Timing table for light source technology tests | SLR-37-07/Rev.1
10 Mar 2020
UN R148: Draft commented revision | SLR-37-14
28 Feb 2020
Report of the 34th SLR informal group session | SLR-34-12
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Latest Meeting Discussions

Working Party on Lighting and Light-signalling | Session 83 | 21-24 Apr 2020
Simplification of Lighting and Light-Signalling Regulations | Session 37 | 2-5 Mar 2020
Simplification of Lighting and Light-Signalling Regulations | Session 36 | 8-10 Jan 2020
See more related meetings