GRE held its ninety-fourth session from 27 to 30 April 2026 in Geneva. The Working Party adopted proposals for amendments to UN Regulations on lighting and light-signalling devices, including proposals to UN Regulation No. 148 and No. 149 as draft Supplement 8 to the 01 series, and to UN Regulation No. 10 as draft Supplement 3 to the 07 series, mandating the secretariat to submit these to the June 2026 and November 2026 sessions of WP.29 and AC.1 as appropriate. GRE agreed to continue consideration of several proposals at its next session, including those on call for help signals, manufacturer logos in lighting devices, pair of lamps clarification, retro-reflective device colour requirements, selective yellow for front lamps, supplemental light-signalling devices, and direction indicator projections, noting concerns from vulnerable road users representatives. GRE extended the mandate of the Informal Working Group on Electromagnetic Compatibility until December 2028 and decided to continue technical discussions on automated driving system marker lamps. The next session is scheduled for 20 to 23 October 2026, with a working document submission deadline of 27 July 2026.

Annotated provisional agenda for GRE’s ninety-fifth session (20-23 October 2026). The session will address development of UN Global Technical Regulations and Rules; simplification of lighting and light-signalling UN Regulations; amendments to UN Regulations Nos. 48, 53, 74, 86, 148, 149, 150, 10 and 65; activities of informal working groups and task forces on simplification, light sources, electromagnetic compatibility, glare prevention, and autonomous vehicle signalling; International Whole Vehicle Type Approval and electronic database developments; and election of officers for 2027.

Proposal to prohibit to approval of a manufacturer logo: insert a new para. 5.12.1.4. permitting the remaining non-substituted part of a front position lamp to remain switched on when part of it is substituted with an adjacent adaptive front-lighting system lamp, provided the distance to the closest energized AFS lighting unit fulfils the requirements of para. 5.7.2.1., amend para. 5.30.1. to improve language on logos for light-signalling devices approved to UN R148, and insert a new para. 4.5.4. to clarify that the apparent surface of a lamp shall not include a manufacturer logo built by transparent or non-transparent components that influence the propagation of light emitted.

Proposal to amend para. 5.10.3. to exclude retro-reflective devices, retro-reflective markings, lighting devices fitted for interior lighting, and reversing projections from the requirements for “red light to the front” and “white light to the rear”. The proposal aims to eliminate unnecessary testing burdens on functions that never emit light by themselves and would always meet the emission requirement of less than 0.25 cd by definition. The exemption aligns with Vienna Convention provisions and reflects an original intent from over twenty years prior.

Proposal to amend para. 4.5.5.(d) to clarify that stop lamps, direction indicator lamps, reversing lamps and side-marker lamps shall not incorporate a manufacturer logo. The amendment addresses an unintended gap in the regulations whereby side-marker lamps could theoretically be approved with a manufacturer logo, whereas it had never been the intention of GRE to allow side-marker lamps with a manufacturer logo. Contracting Parties agreed during the April 2026 session that an amendment to clarify this would be appropriate.

Proposal to renumber and amend para. 13.3. and related subparagraphs to correct the transitional provisions of the 07 series of amendments. The existing para. 13.3.4. is renumbered to 13.3.3., the original para. 13.3.3. is renumbered to 13.3.4., and para. 13.3.4. is amended to explicitly reference vehicles and parts not equipped with or not part of an Automated Driving System (ADS). Contracting Parties shall continue to accept type approvals issued according to the 06 series of amendments for vehicles not equipped with an ADS or for vehicle systems, equipment and parts not part of an ADS which are not affected by the changes introduced by the 07 series of amendments, and for approvals first issued before 1 September 2029.

Proposal to amend para. 3.7.1.2.1. of Annex 8 to correct the introductory text of the paragraph, which mistakenly used the 00 series wording in the 01 series of amendments. The correction updates the introductory text to reflect that in the 01 series class D was removed and classes C and V were introduced, whereas the current text includes class D and does not mention classes C and V.

Proposal to:

• Amend para. 3.1.2.1. to renumber sub-paragraphs (a) through (e) as (b) through (f),
• Amend para. 3.1.2.2.(e) and (f) to renumber (e) as (f) and clarify requirements for adjustable reflectors and compliance with para. 4.13.1.,
• Amend para. 3.1.2.2.1.(d)(ii) to clarify that objective luminous flux shall be provided only for passing beam and to add information on electrical interface for electronic light source control gear,
• Amend para. 3.1.2.2.2.(b), (i) and (k)(ii) to remove reference to footnote 2 in para. (b), relocate mounting position requirements from para. 3.1.2.1.(a) to para. 3.1.2.2.2.(i), and add provisions for light source modules and electronic light source control gear,
• Amend para. 3.1.2.2.3. to remove reference to footnote 2,
• Amend para. 4.17. to update referenced paragraphs,
• Amend Annex 5 para. 3.5.1. to delete incorrect citation,
• Revise Annex 14 to delete AFS description form No. 1 and simplify footnote 2 by removing items (a), (b), (c), (d) and (e).

Proposal to amend para. 2.4.10. to expand the definition of a pair to include vehicles of categories M, N and O with one or more lamps extending from left to right; amend para. 2.4.11. and its sub-paragraphs to redefine single and multiple lamps to refer to interdependent lamps marked “Y”; amend para. 2.4.12. to redefine interdependent lamp system and add definition of interdependent lamp marked “Y”; amend para. 5.5. and its sub-paragraphs to add that a pair shall be considered as two lamps and to establish requirements for manufacturer logos; amend para. 5.7.2.2.; amend para. 5.7.2.3.; delete para. 5.7.2.4.; amend para. 5.18.2.; add new para. 4.7.3. to UN Regulation No. 148 to require that a pair containing one or more light emitting surfaces extending from left to right shall contain at least one light source on each side; and amend para. 4.8.1.3. to clarify photometric measurement procedures.

Proposal to amend para. 6.24.9.2. to clarify that approved lamps emitting white light, rear position lamps, parking lamps, side-marker lamps and end-outline marker lamps may be switched ON as exterior courtesy lamps, and that paragraphs 6.24.9.3., 6.24.9.4., and the conditions of paragraphs 5.11. and 5.12. are not applicable to these approved lamps. The clarification confirms that paragraph 6.24.9.2. allows the coexistence and simultaneous operation of approved lamps without re-classifying them as exterior courtesy lamps and without subjecting them to exterior courtesy lamp-specific concealment requirements.

Proposal to introduce new LED replacement light source categories H9, H10, HB3 and HIR2. The specifications are derived from enforced LEDr category sheets and adapted to the specifications of corresponding filament light source categories using established bi-directional equivalence concept. The amendment inserts new sheets H9_LEDr/1 to 7, H10_LEDr/1 to 7, HB3_LEDr/1 to 7, and HIR2_LEDr/1 to 7 into Annex 3, updates the Status table, and amends Group 5 in para. 3.3. to include the new categories.

Proposal to amend para. 6.27.9.1. to permit the direction indicator lamp to be operated with the luminous intensity of its original specification when used as an answer-back signal, notwithstanding the 700 cd limitation on or above the HH line that applies to other approved lighting and light-signalling devices and exterior courtesy lamps. The proposal removes restrictions on direction indicator lamps used for answer-back activation of already type-approved light-signalling functions, while maintaining prohibitions on front fog lamps, rear fog lamps, and stop lamps.

Proposal to replace “multiple separate light sources” with “multiple light sources” in the provision governing rear position lamps reciprocally incorporated with stop lamps.

Proposal to introduce Automated Driving System (ADS) requirements into the Regulation and correct figures in Appendix 8. The proposal inserts new introductory paragraphs addressing vehicles of categories X and Y equipped with an ADS; amends paragraph 1.3 to include ADS control requirements; inserts new paragraph 2.9.4 on ADS presence; extensively revises paragraph 2.12 on immunity related functions to include ADS-related functions; deletes paragraphs 2.26 and 2.27; inserts new paragraph 2.32 defining “ADS test configuration”

Proposal to:

• Amend Table 18 to delete maximum values at point 50L and correct minimum values at point 50L to 1,360 cd (20% CoP) and 1,190 cd (30% CoP) and delete the associated note,
• amend Table 21 to delete maximum values at point 50L and correct minimum values at point 50L to 1,360 cd (20% CoP) and 1,190 cd (30% CoP) and delete the associated note,
• amend Table 23 to correct maximum values at Segment 10 to 7,100 cd (0% CoP), 8,520 cd (20% CoP), and 9,230 cd (30% CoP),
• amend Tables 30 and 31 to correct minimum values at point HV to 25,920 cd (20% CoP) and 22,680 cd (30% CoP),
• amend Table 24 to delete the associated note regarding multiplication by 1.4,
• amend Table 28 to correct point BR maximum values to 2.65×10³ cd (0% CoP), 3.18×10³ cd (20% CoP), and 3.45×10³ cd (30% CoP),
• amend Table 29 to correct point BR maximum values to 2.65×10³ cd (0% CoP), 3.18×10³ cd (20% CoP), and 3.45×10³ cd (30% CoP),
• amend Table 35 to correct CoP minimum values at point 2U-V to 1.04×10⁴ cd (20% CoP) and 9.10×10² cd (30% CoP) and at points H-9L and H-9R to 2.16×10³ cd (20% CoP) and 1.89×10³ cd (30% CoP),
• amend Annex 4, para. 1.6.2.1. to correct references to table notes from notes 1 and 7 to notes a and f of Table 7.

A 2025 study by TU Darmstadt concluded that a daylight running light passing-beam switching threshold of 500lx is preferable at sunset, and that adaptive DRL values lower than 400cd seem sufficient. The GTB is developing amendment proposals for DRL/low beam switching thresholds, adaptive DRL, and Class V ECO mode. Annual energy saving potentials range from 55 GWh to 141 GWh across evaluated use cases, with highest savings from DRL intensity adaptation and reduced low beam in city nighttime driving.

IWG EMC prepared supplement 3 to the 07 series of amendments to UN R10, with terminological adjustments for ADS adoption, addition of categories X and Y, technical refinement of ADS including a new ADS table in Annex 6 paragraph 2.1.1.2, and modifications to artificial networks with discharge voltage below 50 V and maximum discharge time of 20 seconds. For the 08 series, approved proposals are prioritised on a roadmap.

This paper is to inform relevant GRs of the ongoing activities within the CLIV informal group and the potential influence on the work under the responsibilities of the GRs. CLIV is in Phase 2 developing a new UN Regulation on Children Left in Vehicles for vehicle categories M₁, M₂, M₃ and N₁. The draft regulation includes requirements for visual and audible external warnings upon detecting a CLIV event. The IWG prioritises development for buses first, then light vehicles. The draft regulation aims to mitigate risk of serious or fatal injuries to children left in vehicles. Upon detecting a CLIV event, visual and audible external warnings will be generated using an SOS morse code pattern to distinguish from existing warnings.