Working Party on Lighting and Light-signalling (GRE)
Reports to WP.29

The Working Party on Lighting and Light-Signalling (GRE) prepares regulatory proposals on light-related vehicle safety systems for consideration by the World Forum/WP.29. The GRE enables more than 70 government, industry, and other interested experts to cooperate in the development of regulatory requirements through joint research and validation of test procedures.

GRE works especially closely with the International Automotive Lighting and Light-signalling Expert Group (more commonly known as the GTB), a global group of vehicle manufacturers, system suppliers, light source manufacturers, testing laboratories and academia working to assure the effective regulation and safety of automotive lighting systems and their installation.

GRE usually convenes in March and October of each year.

← Back
Latest Documents
2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2003 2002
29 Apr 2026 UN R148: Proposal for amendment 01 series of amendments GRE-94-55
29 Apr 2026 UN R10: Proposal for Supplement 3 to 07 series of amendments GRE-94-56/Rev.2
28 Apr 2026 Energy Saving Opportunities in Automotive Lighting: GTB Activities Status Report GRE-94-54
28 Apr 2026 UN R10 : IWG EMC Status report GRE-94-53
28 Apr 2026 Highlights from WP.1 with relevance to GRE GRE-94-52
27 Apr 2026 Update provisional agenda GRE-94-01
25 Apr 2026 GRSP Informal Working Group on Children Left In Vehicles GRE-94-15/Rev.1
24 Apr 2026 Survey Outcome among VRUs on Direction Indicator Projection GRE-94-51
24 Apr 2026 UN R148: Proposal for corrections of text GRE-94-50
24 Apr 2026 UN R48: Proposal for editorial corrections GRE/2024/21/Rev.1 GRE-94-49
24 Apr 2026 UN R48: Proposal for a Supplement to the 06, 07, 08 and 09 series of amendments GRE-94-48
24 Apr 2026 ADS - Presentation on Marker lamp SAE J3134 GRE-94-47
24 Apr 2026 UN R10: Proposal for Supplement 3 to the 07 Series of amendments GRE-94-46
24 Apr 2026 UN R48: Proposal for a new series of amendments GRE-94-45
24 Apr 2026 UN R48: Position paper on ADS marker lamps / external identification of ADS Status with using lighting functions - Safety, security and implementation concerns GRE-94-44
24 Apr 2026 UN R48: Proposal for a Supplement to the 08 to 09 Series of amendments GRE-94-43/Rev.2
24 Apr 2026 UN R48: Proposal for a Supplement to the 08 to 09 Series of amendments GRE-94-42
24 Apr 2026 UN R48: Highlights of the baseline amendments for 10 series of amendments GRE-94-41
24 Apr 2026 UN R48: Revision 6 of 04 series of amendments GRE-94-40
24 Apr 2026 UN R86: Highlights of the baseline amendments to 04 series of amendments GRE-94-39
View all 2026 documents →