GRE-94-36
UN R53: Revision 6 amendment 1 to 04 series of amendments

This amendment modifies definitions in paragraph 2, consolidates general specifications in paragraphs 5 and 6, simplifies failure provisions, includes electric vehicles, aligns terminology with UN R48 baseline and standardizes vehicle category references to “vehicles of category(ies),” corrects AFS provision references, applies scientific notation with lumens, aligns approval number text with UN R48, corrects signal lamp category numbering, uses category symbols instead

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Excerpts from session reports
GRE | Session 94 | 27-30 Apr

7. The experts of the Informal Working Group “Simplification of the Lighting and Light-Signalling Regulations” (IWG SLR) reported on their activities (GRE-94-32) and presented an extensive “SLR package” made up of the consolidated texts of draft new series of amendments to four installation UN Regulations Nos. 48, 53, 74 and 86 (GRE-94-33, GRE-94-35, GRE-94-36, GRE-94-37, GRE-94-38, GRE-94-39, GRE-94-40, GRE-94-41). IWG SLR continued considerations on the apparent surface and improved visibility of the rear direction indicators against the stop lamps. The expert from the Netherlands (Kingdom of) reminded that the new series of amendments should include the updated provisions on the Unique Identifier (UI).

8. The Chair of IWG SLR pointed out that the new series of amendments to the installation UN Regulations would include transitional provisions for those series only, while the transitional provisions for the previous series would be collected and published in a separate reference document under the folder “Documents for reference only” on the GRE website.

9. GRE agreed to address ECE/TRANS/WP.29/GRE/2026/3 and GRE-94-02-Rev.1 under agenda item 7 (c) (see para. 32 below).