Proposal to amend paragraph 5.2.3.3 to clarify that samples shall be subjected to the heat resistance test described in Part 1 of Annex 6, prior to the tests described in Parts 1 and 2 of Annex 6 paragraphs 5.2.5 and 5.2.6. Proposal to amend paragraph 5.1.7 to correct the reference in Tables 4 and 5 from Part 4 to Part 5 of Annex 6 for the Rear face test. Proposal to amend Annex 5, paragraph 8.1.4 to correct the cross-reference from paragraph 5.9.4.2.1 to paragraph 5.3.4.2.1.

The agenda includes corrections to UN R150-01, baseline documents for UN R53, R74, R86, and R48, simplification of paragraphs 6.×.4 and 6.×.5, transitional provisions, harmonisation of requirements, apparent surface considerations, and direction indicator visibility improvements. The next meetings are scheduled for June and December 2026, with a potential September 2026 session in Tokyo.

SLR-76 session documents are available on the SLR website. Actions include: correcting errors in UN R150 for submission to GRE-94; preparing Stage 2/Step 2 baseline documents for UN R48, R53, R74, and R86; finalizing simplification of paragraphs 6.×.4 and 6.×.5; discussing apparent surface methodology; approving technological neutrality amendments to UN R48 and R149; collecting literature on rear direction indicator visibility; and reviewing harmonization requirements. SLR-77 meeting scheduled April 15-17, 2026 in Brussels.

Proposal to correct errors and omissions in the 01 series of amendments. Further details can be found in informal document GRE-94-02.

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in Annex 10, allowing deletion of the Table 1 reference and redundant ratio explanations from Figure A10-I. Third, the outdated requirement for function symbols to be placed diametrically opposite the approval number — inherited from UN R3 and R7 but already removed in UN R148 — is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.

Proposal to a new paragraph 4.20. in UN R149 to clarify that road illumination devices shall not incorporate a manufacturer logo and to specify under Annex 5 of UN R150 (requirements for the shape of the illuminating surface of retro-reflective devices) that for classes IA, IB and IVA, these requirements do not permit the shape to represent a manufacturer logo.

Proposal to delete provisions concerning the Unique Identifier pursuant to the WP.29 to replace its application “by default” by application if specific by the regulation.

Proposal to delete provisions concerning the Unique Identifier pursuant to the WP.29 decisions to changes its application from “by default” to if specified by the regulation.

Proposal to align the procedures in case of a surface reflection for both coefficient of luminous intensity (CIL) measurement and colour measurement and otherwise to clarify and to correct the text of the 01 series of amendments.

Proposal to clarify and to correct the text of the 00 series of amendments.

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.

Proposal to clarify and to correct the text of the 00 and 01 series of amendments to UN Regulation No. 150.

Proposal to clarify conditions for use of the DETA Unique Identifier marking.

Proposal to clarify conditions for use of the DETA Unique Identifier marking.

Proposal to clarify conditions for use of the DETA Unique Identifier marking.

Proposal to ensure the availability of sufficient information on the lighting device for periodic and roadside inspections.

Proposal from the SLR informal group to introduce a summary document that will be placed in the electronic Database for the Exchange of Type Approval documentation (DETA) to support the use of the Unique Identifier (UI).

Proposal from GRE to introduce a second phase of amendments under the program for the Simplification of Lighting Regulations (SLR).

Proposal to amend the transitional provisions of GRE/2021/13 (R148) , GRE/2021/14 (R149) and GRE /2021/15 (R150)

Proposal by the GRE Informal Working Group on Simplification of Lighting and Light-Signalling Regulations (IWG SLR) with the aim to correct some errors identified in the proposal for the 01 series of amendments ECE/TRANS/WP.29/GRE/2021/15.

Proposal by IWG SLR for new text to take into consideration previous supplements

Proposal from GRE to improve alignment of UN R150 with the provisions in the original UN Regulations No. 3, 27, 69, 70 and 104.

Prepared by IWG SLR with the aim to re-align the requirements with those of the frozen UN Regulations No. 3, 27, 69, 70 and 104.

Presentation by IWG SLR to support proposal

Proposal for extension of the DETA to improve the use of the Unique Identifier for the lighting UN Regulations.

Proposal for editorial improvements to Annex 24, corrections to the sample illustrations for approval marks, and to re-align the requirements of UN R150 with those of the frozen UN Regulations Nos. 3, 27, 69, 70 and 104.

Open issues identified by the SLR hard-working team.

Draft proposal from the SLR informal group to show the latest status of work and collect feedback from GRE to be used in the preparation of the final proposal that will be submitted to the 84th GRE session.