International Automotive Lighting and Light-signalling Expert Group
2 Nov 2016 Simplification of Lighting and Light-Signalling Regulations: application of the Unique Identifier (UI) (GTB) GRE-76-24/Rev.1 2016-11-02 GTB
18 Feb UN R150: Supporting information for GRE/2026/14 (GTB) GRE-94-11 2026-02-18 GTB
13 Sep 2023 UN R150: Proposal for a Supplement to the 01 series of amendments (GTB) GRE/2023/21 2023-09-13 In paragraph 3.1. of Annex 4, Part 1 the position of the photometer head, the reference axis and the directions are clearly described. If the surface reflection is on the opposite side of the source from the photometer head, which is given at an angle of (β1 = -5°), the surface reflection has no influence on the measurement. This is true for the measurement of RI values as well as for colour measurement. The proposed solution is based on an existing description in UN Regulation No. 27 (namely paragraph 2.6. of Annex 6) concerning the procedure to follow in case of a surface reflection for both colour measurement and CIL measurement. GTB
10 Feb UN R150: Proposal for a Supplement to the 01 series of amendments (GTB) GRE/2026/14 2026-02-10 Proposal to amend UN R150-01 addressing three main issues. First, since the GRE-adopted proposal to delete the unique identifier (GRE-92-18) was not part of the March 2026 WP.29 submission, the regulation text requires amendment in the interim, though this may become unnecessary if merged with GRE-92-18. Second, the approval marking approach is aligned with UN R148 by including one example in the body text and referencing other arrangements in Annex 10, allowing deletion of the Table 1 reference and redundant ratio explanations from Figure A10-I. Third, the outdated requirement for function symbols to be placed diametrically opposite the approval number — inherited from UN R3 and R7 but already removed in UN R148 — is deleted from Annex 10, along with a clarifying amendment to the note below Figure A10-I to prevent inconsistent interpretations among technical services. Further details can be found in informal document GRE-94-11. GTB
31 Aug 2017 Revised draft justifications for the proposed regulations on lighting devices (LSD, RID, RRD) (GTB) SLR-19-06/Rev.1 2017-08-31 GTB
31 Jan 2018 Progress report on integration of GB standards for retro-reflecting devices (GTB) SLR-22-07 2018-01-31 GTB
1 Jun 2018 SLR Stage II: LSD and RRD Regulations (GTB) SLR-24-04 2018-06-01 GTB
1 Jun 2018 SLR Stage 1: The complete package (GTB) SLR-24-12 2018-06-01 GTB
19 Sep 2018 RRD: GTB input for the second-stage simplification of retro-reflecting device requirements (GTB) SLR-26-05 2018-09-19 GTB
19 Sep 2018 RRD: Draft SLR Stage II text based on GRE/2018/4 (GTB) SLR-26-06 2018-09-19 Initial draft text for the stage II simplification of the draft UN Regulation. GTB
19 Sep 2018 RRD: Spreadsheet for the SLR Stage II development of the regulation (GTB) SLR-26-07 2018-09-19 GTB
28 Feb 2019 RRD: Consolidation status update (GTB) SLR-28-17 2019-02-28 GTB
23 Aug 2019 UN R150: RRD simplification steps (GTB) SLR-32-05 2019-08-23 Compressed file containing draft texts as of 17 August 2019:<ul><li>RRD Chapter 5A</li><li>RRD Chapter 5B</li><li>Consolidated draft text</li><li>Step 1 improvements to the original text of UN R150</li></ol> GTB
5 Dec 2019 UN R150: Proposal to amend the marking provisions in Annex 24 (GTB) SLR-35-03 2019-12-05 GTB
16 Dec 2019 UN R150: Proposal to correct the examples of approval marks in Annex 24 (GTB) SLR-35-10/Rev.1 2019-12-16 GTB
30 Jun 2020 Lighting regulations: General remarks on scientific notation (GTB) SLR-38-12/Rev.2 2020-06-30 GTB
30 Jun 2020 UN R150: Scientific notation changes (GTB) SLR-38-15/Rev.2 2020-06-30 GTB
29 Aug 2020 Draft presentation on scientific notation under lighting regulations (GTB) SLR-40-05/Rev.1 2020-08-29 GTB
13 Dec 2020 UN R150: Application of scientific notations (GTB) SLR-43-07/Rev.1 2020-12-13 GTB
20 Feb 2021 Clarification of markings under the 01 series of UN R148 and UNR150 (GTB) SLR-45-06/Rev.1 2021-02-20 GTB
21 Jul 2021 Revised marking examples for UN R148 and UN R150 (GTB) SLR-49-17 2021-07-21 GTB
2 Jul 2025 Input on SLR "apparent surface" discussions (GTB) SLR-73-06 2025-07-02 GTB
28 Nov 2025 UN R150: Proposal to reinsert "downward arrow" provision (GTB) SLR-75-03 2025-11-28 GTB
15 Jun UN R150: Consolidated proposal to amend the 01 series of amendments (GTB) SLR-78-03/Rev.1 2026-06-15 Proposal to amend UN R86 on approval markings and testing requirements:<ul><li>Delete provisions regarding the Unique Identifier and conditional use of conventional type approval markings from the Introduction</li><li>Amend para. 3.3.1.1. to delete reference to the Unique Identifier</li><li>Amend para. 3.3.1.3. regarding approval marking proportions</li><li>Add new para. 3.3.2.5. requiring a vertical downward arrow for devices with reduced light distribution</li><li>Delete para. 3.3.3. on Unique Identifier entirely</li><li>Renumber para. 3.3.4. as 3.3.3.</li><li>Renumber para. 3.3.5. as 3.3.4. and amend to delete reference to Unique Identifier</li><li>Renumber para. 3.3.6. as 3.3.5. and amend to delete reference to Unique Identifier</li><li>Amend para. 5.1. to include Classes IIIA, IIIB and IVA</li><li>Amend para. 5.1.3.1. regarding heat resistance testing and divide samples into groups for testing Class IA, Class IB, Class IIIA and Class IIIB</li><li>Add new para. 5.1.3.1.2. for Class IVA testing</li><li>Amend para. 5.1.7. to create separate Tables 4 and 5 for chronological order of tests for Classes IA, IB, IIIA, IIIB and Class IVA respectively</li><li>Amend para. 5.2.3.3. to reference Part 1 of Annex 6 and paragraphs 5.2.5. and 5.2.6.</li><li>Amend para. 5.2.5.1.1. regarding coefficient of retro-reflection measurement</li><li>Delete para. 5.2.5.2.1. entirely</li><li>Amend para. 5.2.6.3. to include colour requirements and insert Table 8</li><li>Amend para. 5.2.6.4. regarding luminance factor</li><li>Renumber Tables 8, 9 and 10 as Tables 9, 10 and 11</li><li>Amend para. 5.3.5.2.2. to reference Table 11</li><li>Amend Annex 1 Item 5. and delete reference to Unique Identifier in Item 10</li><li>Amend Annex 5 para. 8.1.4. to correct cross-reference to para. 5.3.4.2.1.</li><li>Amend Annex 6 Part 2 para. 1.3.2. to reference para. 5.2.5.1.</li><li>Amend Annex 6 Part 2 para. 2.1.3. to correct paragraph references</li><li>Amend Annex 6 Part 4 para. 4.2. to reference Table 6 only</li><li>Insert new Part 7 in Annex 6 on colour-fastness for Classes IA, IB, IIIA, IIIB and IVA</li><li>Amend Figure A10-I to clarify marking arrangement rules and delete the diametrically opposite requirement</li></ul> GTB