SLR will deliver Stage 2/Step 2 to GRE-96 by end of January 2027 for submission to WP.29 in November 2027. SLR’s mandate ends December 2027. A new informal working group on Supporting technical experts on Lighting Regulation (SteLR) will be established, chaired by EC and vice-chaired by Germany, to address remaining open points from SLR and TF-GP. Main topics include visibility of signalling functions, glare prevention, apparent surface, energy saving, replaceability and sustainability, and V2X communication.

Simplification work on UN Regulation No. 86 addresses five pending points: the number of additional direction-indicator lamps allowed, geometric visibility of category 6 direction-indicator lamps, height for slow-moving vehicles marking plates set as low as possible above the ground but not less than 250 mm at the lower edge, position for slow-moving vehicles marking plates with regard to the vehicle median longitudinal plane, and speed for automatic activation of manoeuvring lamps proposed at 15 km/h as a compromise.

This document is a baseline for UN Regulation 48 (Stage 2/Step 2) concerning vehicle lighting and light-signalling devices. It incorporates all amendments from multiple series and includes provisions for adaptive front-lighting systems (AFS), driver assistance projections, reversing projections, direction-indicator projections, and automated driving system (ADS) features. The regulation establishes requirements for the design, installation, and operation of lighting devices on vehicles of categories M, N, and O, with comprehensive specifications for individual lamp types, geometric visibility angles, electrical connections, and tell-tale requirements. It includes transitional provisions allowing approvals under preceding series while establishing phased implementation timelines for new requirements.

The agenda includes adoption of previous session reports, correction of errors in Regulation 150-01, improvement of direction indicator visibility, rearrangement of lamp provisions in Regulation 48, consistency checks for geometric visibility angles, baseline documents for Regulations 48, 53, 74, and 86, review of transitional provisions, discussion of apparent surface definitions, and submission preparation for GRE-95.

Proposal to amend UN R53:

• Simplify para. 2 by deleting vehicle type definition and consolidating definitions from UN Regulation No. 48,
• Consolidate para. 5 general specifications by reorganising lamp positioning requirements into para. 5.5. and 5.6., restructuring geometric visibility provisions, and clarifying electrical connections,
• Consolidate para. 6 individual specifications by standardising positioning formats into minimum/maximum height tables and reformatting geometric visibility angles into upwards/downwards/outwards/inwards notation,
• Delete para. 5.20. as its content moves to para. 5.6.,
• Delete Annex 3 as its content references UN Regulation No. 48,
• Simplify transitional provisions by deleting para. 11.1. through 11.11. and para. 11.12. and replacing with new para. 11.1. and 11.2. containing simplified provisions applicable to the 05 series of amendments with dates to be determined (1 September 20xx),
• Add Annexes 10 and 11 containing summary tables of lamp positioning and geometric visibility angles.

Proposal to:

• Modify para. 1 of Scope to include vehicles of categories S, agricultural and forestry NRMM, and category T vehicles,
• Amend para. 2 to restructure definitions for vehicle type, lamps, dimensions, and retro-reflectors,
• Delete redundant definitions,
• Add general provisions for lamp position and geometric visibility,
• Modify para. 3 regarding type-approval documentation,
• Amend para. 4 to reference Schedule 4 of the 1958 Agreement (E/ECE/TRANS/505/Rev.3),
• Reorganise para. 5 to establish general specifications and consolidated provisions for lighting connections, tell-tales, concealable lamps, lamps of variable position, and provisions regarding light confusion,
• Amend para. 6 to revise individual specifications for all lamp functions with revised formatting, measurements, and geometric visibility angles, including new requirements for driving-beam and passing-beam headlamps, front fog lamps, reversing lamps, direction-indicator lamps with arrangements A through E, hazard warning signals, stop lamps, front and rear position lamps, rear fog lamps, parking lamps, end-outline marker lamps, work lamps, retro-reflectors (front and rear, triangular and non-triangular), side-marker lamps, daytime running lamps, cornering lamps, conspicuity markings, rear registration plate illuminating lamps, manoeuvring lamps, SMV rear marking plates, exterior courtesy lamps, and signalling panels or signalling foils,
• Modify paras. 7 to 10 regarding modification, extension, conformity, penalties, and discontinuation of production,
• Amend para. 11 regarding technical services and type-approval authorities,
• Restructure para. 12 with transitional provisions for the 04 series of amendments with mandatory application dates of 1 September 20xx,
• Revise Annex 1 communication form to reference the 04 series of amendments and update lamp designations,
• Revise Annex 2 to reflect 04 series of amendments in approval mark examples,
• Replace Annex 3 with new Annex 3 containing visibility zones for red and white light (para. 5.11.4),
• Replace Annex 4 (Direction-indicator lamps geometry) with new Annex 4 containing informative summary tables for lighting and light-signalling installation rules for vehicles of categories T, R, and S,
• Replace Annex 5 (replacing former Annex 6) with updated specifications for signalling panels and signalling foils, applicable from 1 September 20xx.

Based on AVSR-31-03/Rev.2 and GTBWGSL 7201, this work-in-progress draft proposes a new UN Regulation for ADS Marker Lamps. The proposal applies to vehicles of categories M, N, L₆, L₇, and O. It establishes approval procedures for ADS Marker Lamp components and vehicle installation requirements if fitted on a vehicle (the draft includes a tentative statement that nothing prevents prohibiting the use of ADS marker lamps). Key provisions include luminous intensity requirements with day-time and night-time levels for front (AMF), rear (AMR), and side (AMS) lamps; blue-green colour specifications; approval marking and labelling requirements; geometric visibility angles; electrical connections ensuring automatic activation when automated driving systems perform the dynamic driving task; and conformity of production procedures. Outstanding discussion items requiring guidance include vehicle category applicability, day-time and night-time condition definitions, reciprocal incorporation with direction indicators, alternative roof-mounted lamp options, and specification details for side marker lamp categories. Testing procedures for light sources and automatic switching conditions between day-time and night-time modes are included in annexes.

Draft agenda for the 34th meeting of the GRE Taskforce on Autonomous Vehicle Signalling Requirements, to be held via WebEx on 22 September 2026. The meeting will discussion of ADS marker lamps including a draft proposal hybrid regulation after an editorial meeting, miscellaneous items, and next steps including a working plan for future activities.

Terms of reference and rules of procedure for the Task Force on Lamps Under Parked Conditions (TF-LUPC). TF-LUPC shall review the requirements of the current suite of lamps under parked conditions and develop proposals within the framework of UN R48 pertaining to Energy Indicator and Lamp test mode. The task force is open to all GRE participants. Two Co-Chairs (Japan/Netherlands) and a Secretary (OICA) shall manage it. Decisions shall be reached by consensus. STEP 2 aims to present an informal document at GRE’s ninety-fifth session in October 2026 and a formal document at the ninety-sixth session in April 2027 for submission to WP.29 as part of the 10 series of amendments.

Draft amendments concerning lamps under parked conditions presented in a consolidated revision of UN R48.

Proposal to introduce a Front Zero-Speed Indicator (FZSI) system on motor vehicles to signal complete vehicle stops to vulnerable road users. The system activates exclusively when vehicle speed equals 0 km/h and deactivates when speed exceeds 0 km/h. A horizontal light strip of minimum 30 cm width positioned at the upper windshield edge or front roofline provides the signal. Primary color is red (wavelength 620–750 nm); secondary option is high-luminance turquoise or green if required by applicable legislation. Brightness adjusts automatically via ambient light sensors. The system integrates with existing vehicle CAN-bus networks and serves as direct communication for autonomous vehicles.

The Czech Republic requests guidance from GRSG on whether automatic activation of a dedicated “Call for Help” signal with higher flashing frequency, instead of the standard hazard warning signal following severe vehicle impact linked to UN Regulation No. 144 trigger criteria, conflicts with existing post-crash safety requirements under GRSG competence. A formal proposal to introduce this new signal within UN Regulation No. 48 has been submitted to GRE under document ECE/TRANS/WP.29/GRE/2026/2.

The Task Force on Glare Prevention presents recommendations to address glare from headlamps. Regulatory considerations include introducing adaptive cut-off lines, mandatory dynamic auto-levelling, Motorway Adaptive Driving Beam mode requirements, beam dimming for wet roads or urban areas, lowered maximum headlamp installation heights, improved automatic high-beam switching and ADB requirements, and maximum low-beam intensity limits. Additional recommendations address headlamp cleaning devices under UN R45, driver reminders, and user manual instructions. PTI-related considerations cover vehicle weight influence, floor evenness, cut-off line definitions, and coordination between type approval and inspection requirements. General considerations include driver instructions for ADB manual override and investigation of aiming differences. Actions beyond GRE mandate address illegal products, driver awareness, and infrastructure improvements.

Progress report of the Task Force on Glare Prevention to the 95th session of GRE in October 2026. The Task Force comprises 11 Contracting Parties and 40+ participants from 11 NGOs. Nine meetings have been held since the kick-off meeting in January 2025. Homework teams have been established on literature examination, Periodical Technical Inspections, and UN Regulation No. 48. Contributions from NGOs address identifying issues with headlamp aiming, classification of glare and rating, and regulatory gaps between UNECE and PTI. Draft recommendations on the first step addressing reflected image distance are presented for GRE decision.

Proposal to amend para. 6.7.4.1. to require minimum distance of not less than 400 mm between inner edges of two apparent surfaces for M₁ and N₁ category vehicles and not less than 600 mm for all other categories, amend para. 6.9.4.1. to require no special requirement for M₁ and N₁ category vehicles and not less than 600 mm for all other categories, and amend para. 6.10.4.1. to require not less than 400 mm for M₁ and N₁ category vehicles and not less than 600 mm for all other categories, addressing concerns about continuous LED light bars affecting hazard perception and traffic safety.

Progress report on the GRE-IWG SLR’s work to simplify UN Lighting Installation Regulations. The document presents baseline documents for UN R48, UN R53, UN R74, and UN R86, with editorial review and technical amendments. Stage 2/Step 2 submissions include consolidated texts and amendments highlights for each regulation, old transitional provisions, and proposals for corrections to UN R149 and UN R150. Ongoing discussions address rear direction indicator visibility, apparent surface definitions, and single lamp separation distance. The SLR package is scheduled for informal submission at GRE-95 in October 2026, final formal submission at GRE-96 in April 2027, and adoption at WP.29 in November 2027.

Presentation on baseline amendments to UN R48 series 10, highlighting major editorial work including numerous editorial harmonisations and consistency improvements throughout the text, restructure of sub-paragraphs 6.×.4. and 6.×.5., improvements of paragraphs 5.18 to 5.20 on movable components, new informative annexes for lamp positioning and geometric visibility angles, addition of work lamp definition and installation requirements in new paragraph 6.30, updated references from R.E.3 Rev.7 to Rev.8, updated transitional provisions, clarifications on technological neutrality of light sources and non-replaceable light sources, and harmonisation among installation regulations aligning provisions in UN R48 with those in UN R53 and UN R74.

Baseline document for UN R48 Stage 2 / Step 2 incorporating all agreed modifications from SLR meetings, reflecting changes documented in SLR-63-01/Rev.1, SLR-64-03, SLR-64-11, SLR-66-01, SLR-68-13/Rev.3, SLR-72-03/Rev.3, SLR-75-05/Rev.2, WP.29/2024/28 (BL09), WP.29/2025/36 (Sup.1), WP.29/2025/117 (Sup.2), WP.29/2026/33 (Sup.3), WP.29/2026/163 (Sup.4), and GRE-94-25/Rev.2, including updated IEC proposal regarding lighting source technological neutrality. Document identifies open points on apparent surface, direction-indicator visibility against stop lamps, and transitional provisions consistency with IWVTA guidelines.

Presentation on baseline amendments to UN R53 series 05. Main improvements include simplifying definitions in para. 2 by deleting common definitions to UN R48 (reducing from 49 to 27 definitions), adding a summary table of lamp positioning and geometric visibility angles aligned with UN R48, amending the communication sheet with comments from the previous GRE session, amending reference paragraphs 5.15. and 5.16. for readability, aligning further text with UN R48, moving the reference number field for UN R48 series of amendment under para. 10., retaining only the latest transitional provisions in the baseline document with previous ones moved to a reference document, simplifying para. 6.×.4. and 6.×.5. aligned with UN R48, and providing editable pictures.

Proposal to simplify definitions in para. 2, consolidate general specifications in para. 5 and individual specifications in para. 6, revise failure provisions and EV inclusion criteria, clarify wording where no front position lamp exists, and correct references in regulation 53-04. Changes include updating terminology for consistency with UN R48 baseline document (type-approved, retro-reflector, power-driven, direction-indicator lamp with hyphens), replacing visual failure tell-tale with tell-tale indicating failure, using RECAS instead of rear-end collision alert signal, standardizing vehicle category designations, applying scientific notation aligned with prior amendments, consolidating communication forms, reducing transitional provisions to latest only, and modifying paragraph 6.×.4 and 6.×.5 simplifications.

GRE-IWG SLR presents baseline amendments to UN R74 series 04. The document highlights main improvements including simplification of definitions in para. 2 by deleting common definitions shared with UN R48, deletion of six definitions resulting in six remaining, terminology and format alignment with UN R48 and UN R53, addition of a summary table of lamp positioning and geometric visibility angles, amendments to align with other installation regulations including failure provisions and electric vehicle inclusion, simplification of para. 6.×.4. and 6.×.5., retention of only the latest transitional provisions with previous ones moved to a reference document, and provision of editable pictures.

SLR will deliver Stage 2 / Step 2 to GRE-96 as official package by the end of January 2027. If adopted, it will be submitted to WP.29 in November 2027. SLR’s mandate will end in December 2027. Open points and subjects requiring further discussion will be addressed in a new IWG with new ToR, merging remaining open points from SLR with TF-GP and other important subjects. A new IWG on Lighting Performance will be established with EC as Chair, Germany and S. Korea as Vice-chairs, and GTB as Secretariat.

Proposal for uniform provisions concerning approval of ADS marker lamps for power-driven vehicles and their trailers, and approval of vehicles with regard to installation of ADS marker lamps. Covers component approval requirements including luminous intensity, colour, and light distribution for front, rear, and side ADS marker lamps, and vehicle installation requirements including position, geometric visibility, electrical connections, and conformity of production procedures.

Report of the 34th meeting of the GRE Taskforce on Autonomous Vehicle Signalling Requirements held on 22 September 2026. The group reviewed a draft proposal hybrid regulation for ADS marker lamp after an editorial meeting, going through the entire document and deleting unnecessary comments. Para. 9.26 regarding substitution will be placed in square brackets for further discussion at GRE, as Japan opposes it due to lack of scientific evidence. Paragraphs 10.6.2. to 10.6.5. regarding reciprocal incorporation with direction indicators were reworked, and justification text requires further development for the formal proposal. Document AVSR-34-02 will be sent to GRE-95 as an informal document.