Provisional agenda for the ninety-fifth session of GRE, scheduled for 20-23 October 2026, covering consideration of amendments to UN Regulations on lighting and light-signalling devices, including work by the Informal Working Group on Simplification of Lighting and Light-Signalling Regulations on consolidated texts for UN R48, UN R53, UN R74 and UN R86, proposals for new light emitting diode replacement light source categories, amendments from Japan and the Czech Republic to UN R48, clarifications to exterior courtesy lamp provisions and Y-lamp installation requirements, exclusion of retro-reflective devices from light colour requirements, and proposals regarding electromagnetic compatibility and special warning lamps.

Report on a Slovak research project conducted from September 2022 to October 2023 on the impact of front brake lights on road safety. The Front Brake Light was installed on 3,072 vehicles, with 2,715 drivers participating and covering 38.24 million kilometres. Survey results show 78 percent of drivers and 86 percent of pedestrians support general introduction of the Front Brake Light into regular traffic. Both driver and pedestrian respondents reported the feature enhances safety at pedestrian crossings, reduces uncertainty in various traffic situations, and improves traffic flow smoothness.

Document describes the current answer-back signal requirement in UN R48-09, which limits maximum luminous intensity to 700 cd on or above the HH line. The regulation practically prohibits use of direction indicators with filament bulb light sources as answer-back signals, despite conventional widespread use without safety issues. Japan proposes excluding direction indicators from the 700 cd limitation to allow conventional answer-back signals using direction indicators with filament light sources, while maintaining other restrictions including the 700 cd limitation for other functions and prohibition of front fog lamps, rear fog lamps and stop lamps as answer-back signals. Revision is needed before UN R48-09 mandate for new vehicles in September 2027.

This paper provides additional information and justification regarding document GRE/2026/19, introducing four new LED replacement light source categories: H9_LEDr, HIR2_LEDr, HB3_LEDr, and H10_LEDr. All proposals were developed considering equivalence criteria including photometric, thermal, and electrical performance. H9_LEDr, HIR2_LEDr, and HB3_LEDr address high beam applications, while H10_LEDr completes the front fog applications set. The H9_LEDr proposal specifies a single luminous flux of 1875 lm at 13.2V to accommodate both high-beam-only and bi-functional applications.

FIA expresses concerns about logos on side marker lamps, stating that distraction in road traffic is a main reason for accidents and injuries. From a traffic safety perspective, there is no need for logo presentation on light sources or lamps, as their primary function should remain strictly focused on visibility and safety. FIA recommends that if Contracting Parties see a need for illuminated logos on side marker lamps, these should appear in a size not visible on moving traffic, only from close distance, with a maximum total size of 4 cm.

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.

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 to establish uniform provisions for approval of automated driving system (ADS) marker lamps for power-driven vehicles and their trailers, and approval of vehicles with regard to installation of such lamps. The regulation covers component approval requirements including technical specifications, photometric and colorimetric characteristics, light distribution, marking, and conformity of production procedures for Part I; and vehicle type approval requirements including application procedures, general and individual specifications for lamp installation, positioning, geometric visibility, electrical connections, and conformity procedures for Part II.

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.

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.

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.

Proposal to simplify definitions by referring to UN Regulation No. 48 definitions, replace terminology (e.g., ‘vehicle type (moped)’ with ‘type of vehicles of category L1’), standardise hyphenation of terms (‘type-approved’, ‘type-approval’, ‘direction-indicator lamp’, ‘light-emitting surface’), delete references to ‘above’ in cross-references, add space for clarifying UN Regulation No. 48 series, delete ‘to this Regulation’ after Annex references, use scientific notation for lumens, add electric vehicle inclusion provisions, correct signal lamp category errors, add Annexes 6 and 7 (summary tables of lamp positioning and geometric visibility angles), insert para. 5.22, and include transitional provisions applicable from the official date of entry into force of the 04 series of amendments, with continued acceptance of preceding series approvals until 1 September [20xx].

Amendments to UN R86 series 04 align requirements with EU standards. Direction-indicator lamps (DIL) scope expanded for arrangement D to all tractor lengths, with side retro-reflectors and marker lamps required when tractor length exceeds 4.6 m. Slow-moving vehicle rear marking plate maximum height changed from 1.5 m to as low as possible above ground, considering vehicle shape, structure, design or operational conditions. Additional requirements added to permit two supplementary DILs at front and/or rear. Automatic activation speed for manoeuvring lamps revised to 15 km/h from 10 km/h to prevent unexpected activation during work operations.

Proposal to align para. 6.5. with EU requirements including clarification on the number of additional lamps, review editing for the height of the SMV marking plate, specify the position of the SMV marking plate, set automatic activation of manoeuvring lamps at 15 km/h instead of 10 km/h, replace para. references ‘above/below’ with relevant references, assign numbers to tables and figures, apply hyphenation consistently for beam types and lamp terms, use ‘UN Regulation’ syntax appropriately, replace footnote references to R.E.3 with new para. under para. 2, check conformity of production procedures against the Agreement Schedule 1 (E/ECE/324-E/ECE/TRANS/505/Rev.3), align category vehicle terminology, and correct usage of colour/center to British English.

Reference document setting out transitional provisions for UN R48 across series 03 through 09. Specifies dates and conditions under which Contracting Parties must grant approvals only to vehicles meeting requirements of each series, timeframes for accepting approvals under preceding series, and dates from which prior approvals need no longer be recognized. For series 03, provisions apply from 10 October 2007 onwards with different dates for different vehicle categories and marking types. Series 04 transitions begin 07 February 2011 for M₁ and N₁ vehicles and 07 August 2012 for other categories. Series 05 applies from 30 January 2015. Series 06 from 18 November 2017. Series 07, 08, and 09 include staggered implementation dates through 2031 depending on vehicle category.

Document setting out transitional provisions for UN R53 covering the 01 to 04 series of amendments. Provisions specify dates and timeframes for Contracting Parties’ obligations regarding approval of vehicle types with respect to lighting and light-signalling devices, including: 60 months following entry into force of Supplement 10 to the 01 series; 48 months following the 02 series; 1 September 2023 for the 03 series; and 1 September 2028, 2030 for the 04 series. Provisions address acceptance of existing approvals, extensions thereof, and vehicles not affected by changes.

Document for reference containing transitional provisions applicable to the 01, 02, and 03 series of amendments to UN R74. For the 01 series: Contracting Parties shall grant approvals only if vehicle types with regard to number and mode of installation of lighting and light-signalling devices correspond to requirements, with 24 months entry into force and a four-year grace period. For the 02 series: Contracting Parties shall not be obliged to accept type-approvals to the preceding series first issued after 1 September 2023, with continued acceptance until 1 September 2028 for approvals first issued before that date. For the 03 series: Contracting Parties shall not be obliged to accept type-approvals to the preceding series first issued after 1 September 2028, with acceptance required until 1 September 2030 for approvals first issued before that date.

Document presenting transitional provisions for UN R86 covering the 01, 02, and 03 series of amendments. For the 01 series: Contracting Parties shall not refuse type approvals as amended by the 01 series from its entry into force; from 24 months after entry into force, shall grant approvals only to vehicles meeting 01 series requirements; shall not refuse extensions of existing approvals; shall not refuse national or regional type approval of vehicles approved to the preceding series until 24 months after entry into force; and are not obliged to accept preceding series approvals from 24 months after entry into force. For the 02 series: Contracting Parties shall not refuse type approvals as amended by the 02 series from its entry into force; are not obliged to accept 01 series approvals first issued after 1 January 2023; shall accept 01 series approvals first issued before 1 January 2023 until 1 January 2025; are not obliged to accept 01 series approvals from 1 January 2025; may grant approvals according to any preceding series; and shall continue to grant extensions to any preceding series. For the 03 series: Contracting Parties shall not refuse type approvals as amended by the 03 series from its entry into force; are not obliged to accept preceding series approvals first issued after 1 September 2028; shall accept preceding series approvals first issued before 1 September 2028 until 1 September 2030; are not obliged to accept preceding series approvals and extensions from 1 September 2030; shall continue to accept preceding series approvals for vehicle types not affected by 03 series changes; may grant approvals according to any preceding series; and shall continue to grant extensions to any preceding series.

Guidelines establishing requirements for installation, arrangement, position and geometric visibility of rear marking plates on slow-moving vehicles and their trailers which, by construction, cannot travel faster than 30 km/h. At least one rear marking plate shall be type approved and meet regulation requirements, with apex directed upwards and positioned at the rear of the vehicle between 250 mm and 1,500 mm above ground. The plate must lie within 5° of a transverse vertical plane perpendicular to the vehicle’s longitudinal axis and face rearwards, with horizontal visibility of 30° inwards and outwards and vertical visibility of 15° above and below horizontal.

Proposal to amend the Introduction to clarify requirements for approval markings and the Unique Identifier conditional upon access to a secure internet database, amend para. 3.3.1.1. to specify space for the Unique Identifier or approval marking, amend para. 3.3.1.3. to reference Table 1 and Annex 10 for marking arrangements, add new para. 3.3.2.5. for a vertical arrow on devices with reduced light distribution, delete para. 3.3.3. regarding the Unique Identifier format, renumber para. 3.3.4. as para. 3.3.3., amend paras. 3.3.5. and 3.3.6. to clarify marking location and grouped lamps, amend para. 3.5.3.1. to verify stability of optical properties and colour, amend para. 5.1. to list retro-reflector classes, amend paras. 5.1.2., 5.1.3.1., and related provisions to adjust sample numbers and test procedures following exclusion of colour-fastness testing, amend para. 5.2.3.3. to reference the correct heat resistance test part, amend paras. 5.2.5.1.1. and 5.2.6.3. and add Table 8 for daytime colour specifications, delete para. 5.2.5.2.1. regarding maximum retro-reflection values for Classes D and E, renumber Tables 8, 9, and 10 as Tables 9, 10, and 11 respectively, amend Annex 1 Item 5. and add provision for Unique Identifier position, amend Annex 5 para. 8.1.4. to correct cross-reference, amend Annex 6 Parts 2 and 4 provisions for coefficient measurement and corrosion test references, and amend Figure A10-I to remove diametrically opposite requirement for class symbols.

Proposal to amend para. 3.1. and 3.2. of Annex 5 to harmonize terminology by replacing ‘light emitting surface’ with ‘illuminating surface’, amend para. 7.3. of Annex 5 to specify minimum and maximum dimensions for the fluorescent or retro-reflective triangle and red retro-reflective border, amend para. 1.1. of Part 1 of Annex 7 to clarify the wording of visual inspection requirements for retroreflectors following chemical testing, and delete Annex 11 containing guidelines for installation of rear marking plates on slow-moving vehicles.

An agenda for the 95th session of GRE, held 20–23 October 2026 in Geneva, listing discussion items scheduled across four days. Sessions cover adoption of the agenda and election of officers; development of UN Global Technical Regulations and Rules under the 1998 and 1997 Agreements; simplification of lighting and light-signalling UN Regulations; installation and device UN Regulations (Nos. 48, 53, 65, 74, 86, 148, 149, 150, and 10); light sources; glare issues; pending amendment proposals; vehicle automation and future work direction; and other business including type approval development and amendments to the Convention on Road Traffic.

Status report of the Task Force on Substitutes/Retrofits covering LED replacement light sources. The task force recommends deferring submission of high beam category sheets to WP29 pending completion of the front fog cluster PDCA cycle. Two guidance documents will be developed over the next six months to clarify UN R37 requirements for LED replacements and their relationship to IEC 60061. Market surveillance improvements are being pursued through coordination with authorities and PTI organisations.

Proposal to amend the definitions of stop lamps in UN R48, paragraph 2.7.12, and UN R7, paragraph 1.3, to indicate that stop lamps signal when a vehicle is stopped, when one or more wheels are blocked, and to transmit an equivalent signal on the front of the vehicle. The document presents a Front Stop Lamp system designed to activate only when the vehicle is at rest with zero speed or when wheels are locked, using a dynamic sensor to detect wheel rotation angles below 5.6 degrees as blocked and above 5.6 degrees as unblocked, remaining inactive during vehicle motion except to signal incidents involving wheel blockage, thereby providing clearer communication of vehicle status to other road users and pedestrians at intersections, roundabouts, and other traffic situations.

Note by the secretariat summarizing WP.29 activities from June 2026, including adoption of the ADS package comprising a new UN Regulation, a new UN GTR, and amendments to dozens of UN Regulations; extension of the IWG EMC until December 2028; WP.29 discussion of GRE activities on ADS marker lamps with a conclusion that GRE should continue work on technical requirements and engage between WP.29 and WP.1; and adoption of GRE amendment proposals and two other new UN Regulations.

Discussion paper presenting a proposal for technical requirements for an Automated Driving System marker lamp to improve social acceptance and facilitate traffic management and enforcement. The proposal addresses installation position (mandatory front and rear, optional side), visibility angle equivalent to direction-indicators, luminous intensity variation (continuous illumination without flashing, except nighttime dimming), combined use with direction-indicators (ADS marker lamp turned off when direction-indicator operates on same side), and applicable vehicle categories (M, N, L₆, L₇, and O when towed by automated driving vehicle). Survey results from Japan, UK, US, and Germany indicate approximately 70% of respondents support distinguishing automated from manual driving modes externally.

Status report on the Task Force on Lamp Under Parked Conditions (TF-LUPC). The group held two meetings since the 94th GRE session and continued developing a proposal on energy status indicators and lamp test modes. Open issues require advice from GRE experts on the number and switching conditions of energy status indicators, their size and colour, and on lamp test mode categories, AFS modes and classes, test duration, and inclusion of warning lamps. The group plans to submit a final proposal to the 96th GRE session in April 2027 for integration into the 10 Series of amendments to UN R48.

TF-LUPC is established to review requirements of the current suite of lamps under parked conditions and to develop, where necessary, within the framework of UN R48 a proposal pertaining to Energy Indicator and Lamp test mode. The task force is open to all GRE participants and is managed by two Co-Chairs (Japan/Netherlands) and a Secretary (OICA). Decisions are reached by consensus. STEP 2 aims to present an informal document at GRE-95 in October 2026 and a first formal document at GRE-96 in April 2027 for submission to WP.29 as part of the 10 Series of amendments to UN R48.

Proposal to:

• Amend para. 2.5.22. to define Energy status indicator,
• Amend para. 2.7.12. to define Lamp test mode,
• Insert new para. 2.11.5. to define Indicator Blue and Indicator Green chromaticity coordinates,
• Amend paras. 3.2.10. and 3.2.11. to add statements regarding energy status indicator lamps and lamp test mode,
• Amend para. 5.9.4. to permit energy status indicator to flash and vary in luminous intensity,
• Amend para. 5.11.1. to add conditions relating to energy status indicator and lamp test mode,
• Amend para. 5.15. to add colour specifications for energy status indicator,
• Insert new para. 6.29. specifying requirements for energy status indicator including presence, number, position, electrical connections, activation conditions, intensity, pulsation, flashing, and apparent surface area,
• Insert new para. 6.30. specifying lamp test mode requirements including activation conditions, duration, and operation,
• Amend Annex 1 to add items 9.33., 9.34., and 9.34.1. for lamp test mode and energy indicator approval statements,
• Amend Annex 14 to add observing areas for energy status indicators,
• Amend Annex 20 to add technical provisions for energy status indicator intensity based on ambient light levels.

Status report on the Informal Working Group on Electromagnetic Compatibility covering recent meetings held in May, July and September 2026. The report addresses current work on the 07 and 08 series of amendments to UN R10, including a new supplement by OICA to clarify transitional provisions regarding Automated Driving Systems, and discussion of various technical proposals for the 08 series covering AC DC chargers for REESS, radiated requirements, electromagnetic immunity evaluation methods, testing conditions, and harmonics observation. Upcoming sessions are scheduled for December 2026, January 2027 and March 2027.

Proposal to renumber and amend para. 13.3. and related subparagraphs to revise transitional provisions. Contracting Parties shall not refuse type approvals under the 07 series from its official entry into force. From 1 September 2029, Contracting Parties need not accept type approvals from preceding series first issued after that date. Contracting Parties shall continue to accept approvals from the 06 series for vehicles not equipped with an Automated Driving System (ADS) or for vehicle systems, equipment and parts not part of an ADS which are not affected by changes introduced by the 07 series, and shall continue to accept approvals from the 06 series first issued before 1 September 2029 and extensions thereof.

Proposal to amend para. 6.27.9.1. to clarify that the direction indicator lamp used for the answer-back signal may be operated with a luminous intensity not exceeding its original specification, and to restructure the paragraph into subsections (a), (b), and (c) specifying maximum luminous intensity limits, direction indicator lamp operation, and prohibited lamp types.

GTB comments on proposals to restrict lighting options such as band, strip, or illuminated logo. GTB presents findings from a 2025 study by Vrije Universiteit Brussel on daytime running light (DRL) designs, comparing dual and single DRL configurations at different speeds. At 90 km/h no significant difference was found between designs; at 50 km/h dual DRLs showed slightly earlier detection by 30–50 metres (approximately 4 seconds), which researchers considered a perceptual side effect rather than safety-critical. GTB concludes single DRLs provide comparable safety performance to dual DRLs and are viable alternatives. GTB advocates for improved provisions to ensure consistent and harmonised interpretation among Contracting Parties, referencing proposals GRE/2026/6 and GRE/2026/21.

OICA comments on proposed amendments to introduce minimum separation requirements for stop lamps and position lamps in GRE-95-11. OICA contests the justification for the proposed 400 mm separation requirement for M₁ and N₁ vehicles and 600 mm for all vehicle categories, arguing the EC has not established a causal link between continuous lighting and safety deficits, that the claimed recognition distance differences lack meaningful influence on safe driving, and that introducing divergent UN requirements would create technical barriers to international trade contrary to the 1958 Agreement. OICA references published research indicating strip-type taillights provide optimal ergonomic solutions for vehicle conspicuity.

The secretariat has received nominations for the position of Chair and Vice-Chair(s). Mr. T. Kärkkäinen (Finland) is nominated for Chair. Mr. P. Baillet (France) and Ms. S. Kwon (Republic of Korea) are nominated for Vice-Chair(s).

Status report on development of a hybrid regulation for ADS marker lamps. The task force has developed a largely completed document specifying lighting performance, installation conditions, and approval procedures for ADS marker lamps on motor vehicles of categories M, N, O, L₆ and L₇. The report identifies items requiring guidance from GRE including marking legibility requirements, lamp placement specifications, geometric visibility angles, substitution of UN R48 lighting functions, mandatory and optional lamp presence by position, and electrical connection requirements for lamp operation and interaction with direction indicator and stop lamps.

Proposal to insert a new definition of ‘call for help signal’ in para. 2.6.5., add provisions to para. 6.6.7.2. permitting the call for help signal as an alternative to the hazard warning signal following a collision, and insert a new para. 6.30. establishing requirements for the call for help signal. The call for help signal operates via simultaneous flashing of all direction-indicator lamps and optionally all stop lamps at 4.0±1.0 Hz (or 4.0+0.0/−1.0 Hz for filament rear lamps), activates automatically only after activation of an Accident Emergency Call System or equivalent emergency system, deactivates automatically if the vehicle exceeds 15 km/h or if the Emergency Call System is manually deactivated, and may be manually switched off.

Document addresses the Rear-End Collision Alert Signal (RECAS) in UN R48. It identifies unclear speed thresholds for RECAS activation, noting that RECAS may not operate when vehicles are stationary or moving at low speeds depending on system design. Accident data analysis shows 59 percent of rear-end crashes involved stopped lead vehicles and 22 percent involved decelerating lead vehicles. The document requests views on whether RECAS should flash when vehicles are completely stopped, whether owner manuals should state RECAS activation limitations, and seeks information on RECAS verification during type approval.

Document presenting challenges related to headlamp aiming limits for vehicles. Addresses up-down aiming challenges including vehicle load, cut-off line definition, lamp height consideration, and vehicle inspection management. Discusses left-right aiming challenges regarding vehicle references, aiming limits, and kink point definition. Concludes that vehicle approval is key to enabling vehicle inspection to develop its full potential in glare prevention.

The Informal Working Group on Electromagnetic Compatibility is established to review electromagnetic compatibility requirements and develop a proposal for a new series of amendments to UN R10. The group’s objectives include ensuring electromagnetic compatibility, defining essential requirements in performance and technology-neutral terms, limiting measurement workload, updating references to standards and vehicle categories, adapting to technical progress, including provisions for automated driving systems, and reducing ambiguity and administrative burden. The IWG will draft a proposal for the 08 series of amendments, with an informal document targeted for GRE’s 97th session in October 2027 and a formal document for the 98th session in April 2028.

Proposal to insert a new paragraph 2.xx. defining ‘band or strip’ as a luminous element having a maximum horizontal dimension at least 10 times greater than its maximum vertical dimension and having a substantially straight apparent shape, with maximum deviation of the centreline from the straight line connecting the extremities not exceeding 10 per cent of the overall length.

Proposal to amend para. 5.10. and its sub-paragraphs to clarify provisions regarding light which could give rise to confusion, specifically to clarify that for red light reflected by a retro-reflector fitted on the rear or white light reflected by a retro-reflector fitted on the front, the same requirements apply as for other lamps, and to specify that when the lamp is a retro-reflector, the observer shall make use of a torch to check visibility within specified zones.

Proposal to amend para. 6.7.4.1. to require the distance between inner edges of two apparent surfaces of position lamps to be not less than 400 mm, amend para. 6.9.4.1. to require the distance between inner edges of two apparent surfaces of stop lamps to be not less than 600 mm for vehicles other than M₁ and N₁ category vehicles (reducible to 400 mm where overall width is less than 1,300 mm) with no special requirement for M₁ and N₁ category vehicles, and amend para. 6.10.4.1. to require the distance between inner edges of two apparent surfaces of rear lamps to be not less than 400 mm for M₁ and N₁ category vehicles and not less than 600 mm for other categories (reducible to 400 mm where overall width is less than 1,300 mm).

Proposal to amend para. 6.27.9.1. to allow an answer-back signal generated by the direction indicator lamp to be operated with a luminous intensity not exceeding its original specification, thereby excluding the direction indicator lamp from the 700 cd limitation on or above the HH line. The proposal aims to remove unnecessary restrictions on already type-approved light-signalling functions while maintaining technological neutrality and road safety.