This document presents the draft agenda for the 8th meeting of the GRE Task Force on Glare Prevention, scheduled for 9 June 2026 at CLEPA Headquarters in Brussels. The agenda includes welcome remarks, adoption of the agenda, approval of the previous meeting report, feedback from GRE-94, and status updates on HWT on PTI, ADB/AFS, and Regulation 48. Discussion topics cover horizontal adjustment of passing- and driving-beam and AFS-ADB, vehicle preparation for passing-beam measurement, and updates from the GTB Task Force Glare Control. Future meetings are scheduled for Tokyo in September 2026 and Brussels in December 2026.

OICA proposes amendments to LUPC-09-04: amend para. 2.5.22. to expand the definition of energy status indicator to include information on the operational status of energy transfer and illumination to assist in locating electrical connection; delete existing para. 3.2.10. and its subparagraphs; add new paras. 3.2.10. and 3.2.11. requiring statements on energy status indicator lamps and lamp test mode; and amend para. 6.29.9. to clarify that multiple energy status indicators may be installed, change the flashing frequency limit from 2.0 Hz to 5.0 Hz, and enlarge the maximum apparent surface area to accommodate various plug sizes and surrounding illumination designs.

Proposal to amend para. 1., footnote 1 to update the reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3.); add new para. 2.3.3.7. defining devices for Automated Driving Systems; amend para. 2.3.8. to clarify the definition of movable components; delete paras. 2.3.12. to 2.3.12.4. concerning terms and definitions related to automated driving; amend paras. 2.5.3., 2.7.4.7., and 2.7.6.1. to 2.7.6.4. to incorporate automated driving system references; insert new paras. 2.5.22., 2.7.12., 2.7.13., 3.2.10., 3.2.11., and 5.35.14. relating to direction indicator projections and driver assistance projections; insert new paras. 5.37. and 5.38. establishing general provisions and special requirements for vehicles equipped with an Automated Driving System; amend paras. 6.1.1., 6.1.4.3., 6.1.7.2., 6.1.7.3., 6.1.8.1., 6.2.4.3., 6.2.6.1.1., 6.2.6.2.2., 6.2.7.6., 6.2.7.7., 6.3.4.3., 6.3.6.1.1.1., 6.3.6.1.2.2., 6.3.9., 6.4.7.2., 6.5.7., 6.6.7.1., 6.7.9.2.1., 6.13.4.2., 6.19.4.3., 6.19.7.2.©, 6.20.7.2., 6.22.4.2., 6.22.6.1.1., 6.22.7.4., 6.22.7.5., 6.22.8.3., 6.22.8.4., and 6.26.7. to address automated driving system operation and direction indicator projections; insert new para. 6.29. with comprehensive requirements for direction indicator projections; insert new items 9.33. and 9.34. in Annex 1 regarding direction indicator projections and automated driving systems; amend Annex 5, para. 2. and paras. 2.1. to 2.4. to define seating position 1 and modify loading conditions for automated vehicles; amend Annex 14 title; and insert new Annex 18 specifying the chevron as the basic element for direction indicator projection patterns, based on ECE/TRANS/WP.29/GRE/2024/21/Rev.1, ECE/TRANS/WP.29/GRE/2025/23, and GRE-93-30-Rev.1.

Baseline document for stage 2 of UN Regulation No. 48, based on R48-09 (R48-08 up to Supplement 04 and WP.29/2024/28, WP.29/2025/36, with modifications agreed at GRE-92 and GRE-93

Proposal for editorial work with thorough review and consistency improvements. New informative Annexes for lamp positioning and geometric visibility angles are added. Technical prescriptions now pertain only to the new series. Light source provisions are clarified regarding technological neutrality, usage of light source modules, and non-replaceable light sources.

Proposal to add editorial corrections to UN R48 series 06 to 09 based on GRE/2024/21/Rev.1 and WP.29/2025/114. Changes include inserting definitions for direction indicator projector, basic element, and direction indicator projection; adding requirements for direction indicator projections

Presentation on visualisation of signals for help

Proposal provides an alternative proposal to GRE/2024/12 Revision 2 as amended by GRE-93-28 Revision 1 .

Paper introduces an ADS marker lamp to identify vehicles operating with an Automated Driving System. Industry does not seek to mandate such a lamp. It identifies safety and security concerns including no demonstrated real-world net safety benefit, targeting and public violence risks, cargo robbery risks, child safeguarding concerns, cyber-physical attack surface expansion, and spoofing and misuse potential.

Proposal clarifies the “Manufacturer logo” means a light emitting graphic mark, emblem, word, or combination of those elements used to aid public identification of a vehicle manufacturer’s brand name when the function is switched ON. Improved justification for the proposal

Proposal to add VRU warning pattern requirements. Document presents data from accident databases showing pedestrian crossing conflicts represent the highest proportion of nighttime road accidents at approximately 32% with obstructions and 19% without. Limited visibility and restricted communication between drivers and VRUs necessitates an assistance function. A spotlight feature with a bright narrow beam pattern directed at hazardous VRUs, moving with the target and flashing to remind drivers while warning VRUs, received positive feedback from customer experience surveys

Proposal for a supplement to the 06/07/08/09 series of amendments to UN Regulation No. 48 and the 02 series of amendments to UN Regulation No. 148 concerning manufacturer logos in side-marker lamps. The proposal amends paragraph 5.5.5. of UN R48 to clarify that no restrictions apply to logos in side-marker lamps, and amends paragraph 4.5.5. of UN R148 to add side-marker lamps to the list of lamps that shall not incorporate a logo. The justification references ECE/TRANS/WP.29/GRE/2020/5/Rev.2.

TF LUPC proposal based on UN R48 consolidate version from SLR-73-07/Rev.1 including LUPC-01-03. Adds new annex for Technical Provisions for Energy Status Indicator

Proposal to add work lamp definitions and requirements to UN R48, minimum height of 250 mm above ground, downward orientation, and automatic deactivation within 1 second if vehicle speed exceeds 15 km/h. Work lamps require independent manual controls and a mandatory visual operating tell-tale. Annex 1 adds item 9.32. for work lamp approval documentation.

GTB proposes simplifying UN R48 by developing a single CAD-based method to determine apparent surface at early design stages. The proposal deletes the “light-emitting surface” definition and establishes “apparent surface” as the orthogonal projection of visible light-emitting surfaces in a specified observation direction. Amendments include revised definitions for lens, textured outer lens, illuminating surface, and apparent surface, with modified requirements for single lamps with multiple distinct parts. Distance requirements between adjacent parts are adjusted to 75mm or 200mm depending on lamp type.

UN R48 baseline text for a 10 series of amendments proposes uniform provisions for vehicle lighting and light-signalling device installation approval. The document consolidates modifications agreed at working group session through dated amendment documents and resolutions. Pending issues include determining “[any] subsequent series” terminology for frozen regulations, renumbering and cross-checking paragraphs, addressing apparent surface visibility, improving daytime running lamp visibility against stop lamps, resolving “prohibited if not allowed” language, and numbering all figures with titles. Editorial polishing includes standardizing hyphenated terminology (“driving-beam,” “passing-beam,” “retro-reflector,” “direction-indicator lamp”), applying consistent UN Regulation references, replacing “communication sheet” with “communication form,” assigning table and figure numbers consistent with similar regulations, and correcting percentage notation to “per cent.”

The European Cyclists Federation and International Federation of Pedestrians withhold support for Direction Indicator Projection (DIP) technology regulation. They contend available studies lack evidence of reduced conflicts or crashes in real-world conditions, raise concerns about behavioral adaptations that may redistribute rather than reduce risk, and note the technology does not address responsibility allocation where cyclists and pedestrians already have legal priority. Additional concerns include reliance on uncontrolled road surfaces affecting signal visibility and clarity, and risks of shifting safety burden onto vulnerable road users contrary to Safe System principles. They urge contracting parties to refrain from regulation pending robust research confirming the technology neither undermines priority rules nor introduces unintended behavioral risks.

Proposal to insert new definitions for “direction indicator projector,” “basic element,” and “direction indicator projection” in paragraph 2.5.22., 2.7.12., and 2.7.13.; amend paragraph 5.9.1. to include direction indicator projections as flashing lamps; amend paragraph 5.15. to specify amber colour for direction indicator projection; insert new paragraph 5.37. with general provisions for direction indicator projections; insert new paragraph 6.28. with detailed requirements for direction indicator projection presence, number, arrangement, position, projection area, orientation, electrical connections, and other requirements for vehicles of categories M, N, O₃, and O₄; insert new item 9.32. in Annex 1 with communication form entries; amend Annex 14 title; and insert new Annex 18 (Basic element to be used for direction indicator projection patterns).

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.

Proposal to insert para. 2.5.22. defining direction indicator projector, insert paras. 2.7.12. and 2.7.13. defining basic element of a direction indicator projection and direction indicator projection, insert para. 3.2.10. requiring manufacturers to provide a list of patterns where direction indicator projections are provided, amend para. 5.9.1. to include direction indicator projections as flashing lamps, amend para. 5.15. to specify direction indicator projection colour as amber, insert para. 5.37. with general provisions for direction indicator projections including pattern explanation in owner’s handbook and automatic reduction of luminous intensity to 7.00×10³ cd or less when windshield wiper operates continuously for at least two minutes, insert para. 6.28. with detailed requirements for direction indicator projection presence, number, arrangement, position, projection area, orientation, electrical connections, and other requirements for vehicles of categories M₁–M₃, N₁–N₃, O₃, and O₄, insert item 9.32. in Annex 1 to the Communication Form, amend Annex 14 title, and insert new Annex 18 specifying chevron as the basic element for direction indicator projection patterns in amber colour.

This document addresses rear direction-indicator lamps mounted at low positions on vehicles. Republic of Korea reports increased public petitions and media articles regarding visibility and recognition concerns, particularly in congested traffic and for vehicles with higher driver seating positions like SUVs. UN Regulation No. 48 specifies direction-indicator lamp height requirements: not less than 350 mm and not more than 1,500 mm, or up to 2,100 mm under certain structural conditions. The presentation seeks feedback on similar issues from other countries and manufacturers.

Proposal to add new provisions defining terms related to automated driving systems (including Dynamic Driving Task, Automated Driving System, Operational Design Domain, and ADS feature), amend definitions of direction-indicator lamps, adaptive main beam, switching and activation functions, and movable components, insert definitions of direction indicator projectors and projections, add general and special requirements for direction indicator projections including patterns, luminous intensity limits, electrical connections, and operational constraints, amend requirements for vehicles equipped with an Automated Driving System including control of lighting functions, automatic operation provisions, testing methods, and applicability of driver-related requirements to categories X and Y vehicles, modify provisions for headlamp control, dipped-beam adjustment, fog lamp adaptation, reversing lamps, and Adaptive Front-lighting Systems to accommodate ADS operation, insert new communication form items for direction indicator projections and ADS presence, amend loading conditions in Annex 5 to reference seating position 1 instead of driver’s seat and add provisions for categories X and Y vehicles, retitle Annex 14, and insert new Annex 18 specifying chevron as the basic element for direction indicator projections in amber colour, effective upon entry into force as Supplement 4 to the 09 series of amendments.

Proposal to add provisions for Automated Driving Systems (ADS) in vehicle lighting and light-signalling functions, insert definitions for ADS-related terms and direction indicator projection, amend direction-indicator lamp definition to reference UN Regulations 97, 116, 162, and 163, add direction indicator projector definition, amend switch ON/OFF and activate/deactivate definitions to include ADS operation, insert definitions for basic elements and direction indicator projection, add requirements for direction indicator projection patterns in approval documentation, add driver seat position specification requirement, amend headlamp discomfort and ADS performance requirements across multiple paragraphs, insert main-beam control requirements for active ADS features, amend dipped-beam and front fog lamp provisions to account for ADS, add automatic alignment and luminous intensity adaptation provisions, amend side-marker lamp operation to permit ADS control, insert direction-indicator lamp flash requirements for ADS operation, add hazard warning signal control by ADS, amend interior lighting provisions, amend front-facing lighting unit height requirements for ADS-equipped vehicles without windscreens, insert ADS control requirements for cornering lamps and reversing lamps, amend Adaptive Front-lighting System (AFS) provisions to permit ADS control, insert new paragraph 6.28. establishing comprehensive direction indicator projection requirements including presence (optional), number, arrangement, position, projection area boundaries, orientation, electrical connections (flash synchronisation with direction-indicator lamps), tell-tale (optional), visual testing requirements, pattern restrictions, and operational restrictions based on vehicle speed and gear engagement, add Communication Form items for direction indicator projection luminous intensity and projector compliance, add item for ADS presence indication, add item for driver seat location specification, amend Annex 5 loading conditions to establish “seating position 1” terminology for the front seat nearest opposing traffic with provisions for ADS-equipped vehicles of categories X and Y, and insert new Annex 18 specifying the chevron as the sole basic element in amber for direction indicator projection patterns.

The HWT analyzed literature and expert knowledge to identify glare causes, performance negative effects, and improvable requirements for ADB/AFS systems. Key issues include wet road conditions, external objects obstructing sensors, soiled headlamps, and insufficient dynamic masking accuracy. Recommendations include improving headlamp cleaning enforcement, enhancing vehicle detection requirements, introducing motorway ADB usage, implementing adaptive cut-off lines, and providing manual override instructions.

OICA presents research findings on direction indicator perceptibility when stop lamps activate simultaneously. Key findings indicate that spatial separation between functions, increased direction indicator intensity, and relative signal dominance improve perception. Research shows stop lamp luminance can reduce direction indicator recognition, particularly in near-field viewing. OICA concludes that minimum size requirements proposed in the German proposal exceed available evidence and may create unintended consequences without demonstrated safety benefits.

The document analyzes separating direction indicators and stop lamps. It examines how drivers recognize lighting functions through visual perception and notes that irregular lamp shapes increase reaction time. The document states that “apparent surface”, currently defined only through manufacturer drawings, lacks perceptual grounding because it ignores luminance distribution and edge contrast. It recommends minimum lamp sizes and distances based on visual acuity, minimum luminance requirements, and a 3:1 luminance contrast between functions when spatially merged in one lamp.

A literature review on direction indicator visibility presents research on vehicle lighting design, visibility, and signalling. Sources include studies on overlapping and interlocking of lights, and dynamic evaluation of automobile rear lighting configurations.

CLIV is developing a new UN Regulation for vehicle categories M1, M2, M3, and N1 in Phase 2. The draft regulation requires visual and audible external warnings upon detection of a child left in a vehicle. Visual warnings use direction indicator lamps flashing in SOS morse code pattern for at least 15 seconds, then off for no more than 30 seconds, repeating for at least 10 minutes. Audible warnings must exceed 60dB(A) following the same timing pattern. The IWG requests guidance on potential amendments to UN R48, UN R28, and UN R165.

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 clarify manufacturer logo requirements across several paragraphs: confirming that non-illuminated graphic marks are not considered logos (para. 2.1.7.); permitting vehicle manufacturers to keep the inner portion of a front position lamp active when an AFS headlamp substitutes the outer portion (para. 5.12.1.4.); improving logo language for Light Signalling Devices approved to UN R148 (para. 5.30.1.); and clarifying that Road Illumination Devices approved to UN R149 shall not include a manufacturer logo (para. 5.30.2.).

Proposal to introduce a new “call for help” signal.

Proposal to align the Exterior Courtesy Lamps provisions of the 08 series amendments with those of the 09 series.

Proposal to exclude retro-reflective devices and markings from the requirement of “Red light to the front” and “White light to the rear”.

Proposal to introduce selective yellow as an permitted alternative to white for front position lamps and daytime running lamps in UN R48 and UN R148. Studies confirm that selective yellow performs equally to white for oncoming vehicle recognition and speed estimation. Unlike historical filament lamp applications where a yellow filter reduced luminous intensity, modern LEDs achieve the same intensity levels without reduction. Specific amendments include: updating §5.15 to reflect selective yellow options and removing a duplicated front fog lamp requirement; amending §§6.9.7 and 6.19.7 to deactivate selective yellow position and daytime running lamps on the relevant side during direction indicator activation; and aligning UN R148 (01 series) by amending §§5.1.7, 5.4.7 and Annex 1 accordingly. The colour boundaries for selective yellow are already defined in §2.11.1.2 and require no amendment. Further details can be found in informal document GRE-94-05.

Proposal to clarify and modernize lamp installation and component requirements in UN R48 and UN R148 to address the growing variety of vehicle and lamp designs, particularly band/strip lamps extending across the full width of the vehicle. Key changes include: removing the “band/strip” terminology and expanding the definition of a pair of lamps to cover full-width designs; removing the three-device maximum for Y-lamps to ensure technology neutrality; adding a new paragraph §5.5.5 defining a pair as a two-lamp system; relocating light source requirements from UN R48 to UN R148 §4.7.3 to ensure at least one light source per side; removing the 0.8-metre minimum length requirement; and clarifying that definitions in §2.4.10 apply only to the relevant vehicle categories. Minor amendments to UN R148 include updated provisions for light source positioning, clarification of §4.8.1.3, and new sampling provisions in §4.8.11 for testing band/strip lamps. Further details can be found in informal document GRE-94-03.

The Task Force on Lamps Under Parked Conditions examined proposed modifications to UN R48 regarding vehicle lamp test modes, focusing on energy status indicators for charging vehicles. Key discussions included: color specifications for indicators, multiple energy status indicator placement on vehicles, frequency requirements for flashing indicators, and apparent surface area values. The group debated whether to include Adaptive Front-lighting System modes in lamp test procedures. Multiple paragraphs were revised, deleted, or approved for further consideration at the next session scheduled for March 2026.