Proposal to amend UN Regulation No. 121 by inserting new paragraph 5.2.1.1 stating that fonts shown in Table 1 are not intended to be restrictive and other fonts may be substituted if legibility is maintained. Table 1, Note No. 20 is amended to clarify that the font of letters “OFF” or “ESC OFF” is not intended to be restrictive. The purpose is to clarify the text, provide flexibility, harmonize with international standards, and adapt to current digital work tools.

Proposal to amend UN Regulation No. 39 (Speedometer and odometer) to introduce software update references and identification. New provisions add definitions regarding Software Identification Number, refer to Consolidated Resolution on the Construction of Vehicles (R.E.3), Annex 7, paragraph 2. Modifications address production definitively discontinued, software updates for registered vehicles, hardware and software information provision, vehicle approval for differentiating software versions, and additional information regarding software identification. The proposal references ECE/TRANS/WP.29/1175, paragraph 37, and incorporates provisions from R.E.3 Annex 7 to define R39SWIN as dedicated identifier representing type-approval relevant software information.

Door-opening collision accidents between motor vehicles and vulnerable road users occur frequently and pose serious risks to road traffic safety. No mandatory UN Regulation or Global Technical Regulation for Door Opening Warning Systems exists internationally, resulting in regional inconsistencies. A virtual kick-off workshop was held on 1 April with participation from contracting parties and stakeholders. The workshop reviewed accident data from Germany and China, discussed potential technical parameters for DOWS, and identified the need for broader international data collection. Further workshops are envisaged pending availability of substantive new input.

Proposal to amend and supersede document ECE/TRANS/GRSG/2026/2 to UN R43. Supplement 13 to the 01 series of amendments introduces provisions for vehicles of category X and Y, and vehicles with manual mode operating above 6 km/h equipped with Automated Driving System Feature of Type 2. The amendment extends application to vehicles without driver and manual driving controls. Different manual modes are considered: remote-control operation, seated driver operation for category X, and onboard operation other than seated for category X. Requirements for windscreens, safety glazing, light transmittance, and installation provisions are modified accordingly for these vehicle categories.

Subjects under consideration by the Working Party on General Safety Provisions (GRSG) at its 131st session are listed with priority allocations and timelines. Priority tasks include Event Data Recorder performance elements for automated driving systems with GRVA and IWG on EDR/DSSAD, scheduled for October 2027 adoption at WP.29; electric radiant warmers for electric vehicles under UN Regulation No. 122 by April 2026; and regulatory updates for inclusion of automated vehicles across multiple regulations. Distraction and drowsiness requirements are scheduled for October 2028 and March 2029.

Proposal to amend para. 8.2.1.1. to replace “Optional distortion” with “Optical distortion” in the table of tests for windscreens and glass panes. The amendment corrects the title of the optical distortion test listed in the table.

Proposal to renumber paragraph 2.2. as paragraph 2.25., amend definitions 2.6.–2.11. to clarify automatically commanded steering function categories not part of Driver Control Assistance Systems, insert new footnote 2 explaining approval routes, delete definition 2.25., amend definitions 2.18., 2.20., 2.35., 2.45., 2.51., 2.64., 2.65., insert new definitions 2.12., 2.71.–2.81., amend paragraphs 5.3.1., 5.3.2., 5.3.3. to add rollover events and AEBS triggers, amend paragraphs 5.4.3. and 6.1., insert transitional provisions in paragraphs 12.12.–12.16. effective from the official entry into force date until 1 September 2033, amend Annex 1 and Annex 4 Table 1 to add and modify data elements including Engine throttle and Accelerator pedal as separate elements, Pre-Event Synchronization Timer, Trigger activated, ACPE, ADDW, DDAW, Blind spot monitoring system, Turn signal, DCAS, Emergency stop signal status, and Time to collision, with adjusted recording intervals and sample rates.

Proposal to amend UN R46 regarding external surfaces, mirror positioning, camera and monitor requirements, impact testing, and indirect vision devices:

• Amend para. 2.7. and Figure 1a to define external original surface,
• Insert new paras. 2.10. and 2.11. defining protruding support and opaque obscuration,
• Amend para. 6.1.1.9. and insert new para. 6.1.1.10. regarding folded mirror position requirements,
• Amend para. 6.2.2.1.5. and insert new paras. 6.2.1.4. and 6.2.2.1.6. regarding camera and monitor materials and folded position requirements,
• Amend para. 6.3.2. regarding impact test exemptions,
• Amend para. 6.3.2.1.1. and Figure 1c regarding test rig specifications,
• Amend para. 6.3.2.2.5. regarding impact point displacement,
• Amend para. 12.6. to add abbreviation for ocular reference point,
• Insert new para. 12.10. defining overall width of vehicle with table of devices not required to be taken into account,
• Amend para. 15.1.4. regarding light transmission factor reference,
• Amend para. 15.2.1.2. regarding mirror mounting,
• Amend para. 15.2.4.4.2. and Figure 7 regarding wide-angle view device,
• Amend para. 15.2.4.9.1. regarding rear-view device obstruction,
• Amend para. 15.2.4.9.2. regarding Classes II through VII devices,
• Amend para. 15.2.6.6. regarding device projection limits,
• Amend paras. 16.1.1.3. and 16.1.1.3.1. regarding safety-related indirect vision information,
• Amend para. 16.3.2. regarding exterior surveillance cameras,
• Delete footnote 2 in Annex 2,
• Insert new para. 22.34. with transitional provisions effective 1 September 2030 through 1 September 2032,
• Amend Annex 5 approval mark examples to reflect 08 series amendments.

Proposal to amend UN R159:

• Insert new title establishing a three-part regulatory structure for Moving Off Information Systems approvals,
• amend and renumber paragraphs throughout to reorganize content into Part I (vehicles regarding MOIS), Part II (vehicles regarding MOIS installation of approved Component or Separate Technical Unit), and Part III (MOIS Component or Separate Technical Unit),
• insert new paragraphs defining approval types and vehicle/component/STU classifications,
• amend definitions to clarify MOIS Component and Separate Technical Unit,
• establish permitted variations and representative test setup requirements,
• insert new Part II specifications and test procedures for installed approved-type systems,
• insert new Part III comprehensive specifications and test procedures for Component and STU covering detection, control, human-machine interface, automatic deactivation, information signals, collision warnings, and failure warnings,
• insert new Part III test procedures including static crossing tests, longitudinal stopping and moving-off cyclist tests, failure detection and automatic deactivation tests,
• insert new Annexes 2–7 providing communication and information documents for vehicle and component/STU approvals,
• renumber existing Annexes to 8 and 9,
• introduce approval mark provisions for components and STUs.

Proposal to amend Annex 16, para. 9.6. to clarify the endurance test procedure for pressure regulators and vaporizers by specifying that the outlet of the regulator shall be plugged during cycling of the inlet pressure from 100 per cent to 50 per cent of classification pressure at room temperature and at high and low temperatures. The regulator shall withstand 50,000 cycles without failure and remain leak proof after testing at temperatures of −20 °C, room temperature, and +120 °C.

Proposal to amend Annex 4D, para. 2.4., to clarify the endurance test procedure for CNG pressure regulators by specifying that the outlet of the regulator shall be plugged during the cycling of inlet pressure from 100 per cent to 50 per cent of service pressure at room temperature. The regulator shall withstand 50,000 cycles without failure and be leak proof at specified temperatures upon test completion.

Proposal to insert new para. 5.2.1.1. stating that fonts shown in Table 1 are not intended to be restrictive and other fonts may be substituted if legibility is maintained, and amend Table 1, Note No. 20 to delete the statement that the font of the letters “OFF” or “ESC OFF” is not intended to be restrictive.

Proposal to amend para. 2.5. to change “a potential” to “an imminent” forward collision, insert new paras. 2.48. and 2.49. defining “Non-volatile memory” and “Volatile memory” respectively, and amend para. 5.3.1.2. to permit the EDR to write captured data from Last Stop trigger threshold criterion (a) in volatile memory only, with transfer to non-volatile memory upon occurrence of any other trigger of para. 5.3.1. or deactivation of vehicle master control switch, effective upon entry into force of Supplement 2 to UN R169.

Proposal to amend paras. 2 to 2.1.7. to insert a new category L₃-₅ defined as a vehicle with three wheels with a 2 wheeler-3 wheeler combination module constructed so that a two-wheeled vehicle of category L₃ is combined with a non-self-propelled rear module unit that can be separated or combined as required, provided that either a two-wheeler of category L₃ or a three-wheeled vehicle of category L₅ can only be used at any point in time, and renumber existing categories L₆ and L₇ as L₇ and L₈ respectively.

Proposal to insert a new category 3-3/3-4 vehicle definition in para. 2.1.5. meaning a vehicle with three wheels with a 2-wheeler-3-wheeler combination module constructed so a two-wheeled vehicle of category 3-3 is combined with a non-self-propelled rear module unit that can be separated or combined, either a two-wheeler of category 3-3 or three-wheeled vehicle of category 3-4 only used at any time, and renumber para. 2.1.5. as 2.1.6. The new category addresses affordable and versatile transportation for low- and middle-income countries, enabling single certification instead of separate reports for two-wheeled and three-wheeled vehicles.

Proposal to amend UN R105:

• Modify para. 5.1. to reflect new structure adopted for ADR 2027 by modifying the table of technical specifications,
• amend para. 5.1.1.8. to replace “electrical circuits” with “electrical systems” and add provisions for electronic features,
• amend para. 5.1.1.8.2. to add requirement for additional control device for vehicles equipped with Camera Monitoring System according to UN Regulation No. 46,
• amend para. 5.1.3.5.1. by deleting external signal requirements,
• amend para. 5.1.3.6. and renumber para. 5.1.3.7. to 5.1.3.6.,
• insert new para. 5.1.7. to require motor vehicles and trailers with maximum mass exceeding 3.5 tonnes to be equipped with tyre pressure monitoring systems according to UN Regulation No. 141 as amended by at least 01 series,
• insert new para. 10.7. containing transitional provisions applicable from official entry into force and from 1 January 2029,
• amend Annex 2 to update approval number series from 07 to 08.

Proposal to amend UN R73 to correct paragraph references:

• Amend para. 12.1. to correct paragraph references from 12.4.3. and 12.4.4. to 12.4.2. and 12.4.3.,
• Amend para. 15.1. to correct paragraph references from 15.2.3. and 15.2.4. to 15.2.2. and 15.2.3.,
• Amend Annex 3, para. 2.4. to correct the paragraph reference from 2.8. to 12.10. and insert clarifying language [of this regulation].

Proposal to amend UN R18, UN R39, UN R46, UN R55, UN R58, UN R67, UN R73, UN R93, UN R97, UN R102, UN R105, UN R107, UN R110, UN R116, UN R121, UN R122, UN R125, UN R144, UN R147, UN R151, UN R158, UN R159, UN R160, UN R161, UN R162, UN R163, UN R166, UN R169, UN R176, UN R181, UN R182 and UN R183:

• Add new paragraphs defining Software Identification Number by reference to Consolidated Resolution on the Construction of Vehicles (R.E.3) Annex 7, para. 2,
• amend paragraphs concerning production discontinuation to clarify that production is not considered definitively discontinued if vehicle manufacturers intend to obtain subsequent extensions of approval for software updates of vehicles already registered in the market,
• add new paragraphs requiring manufacturers to provide Technical Services with information on all hardware and software having an influence on performance,
• add new paragraphs allowing vehicle manufacturers to apply for new vehicle approvals to differentiate software versions for vehicles already registered in the market from those for new vehicles,
• add new paragraphs to approval forms requesting additional information regarding software identification and software updates, including whether Software Identification Number is held on the vehicle and relevant parameters for identification of vehicles that can be updated with the represented software.

Proposal to insert definitions for Child Restraint System, ISOFIX position, and i-Size seating position, add requirements for installation of child restraint systems in vehicles of categories M₂ and M₃ including pictogram markings for ISOFIX positions, i-Size seating positions, and rearward-facing passenger seats, and establish transitional provisions. Contracting Parties applying this Regulation shall not be obliged to accept type approvals to preceding series first issued after 1 September 2030.

Proposal to amend para. 2.5.2. to change the lower vertical datum point from 5 above the horizontal to 4 above the horizontal, and amend Figure 3 to reflect this adjustment. The modification harmonizes the location of the lower datum point with the angle of obstruction requirement and resolves an inconsistency in UN Regulation No. 43.