PTI IWG activities include:

• Reviewing NOx measurement and emissions testing,
• assessing implications of new Euro 7 UN Regulations (Nos. 179 & 180),
• continuing work on diagnostic devices in PTI (ePTI),
• discussing PTI approaches for automated vehicles,
• reviewing new braking technologies,
• identifying inspection challenges for LED lighting systems,
• launching a review of PTI provisions in UN Regulations,
• consulting relevant GRs on inspection methods,
• developing amendments for priority UN Regulations,
• submitting proposals to WP.29 for endorsement.

The 198th session of WP.29 (March 2026) adopted amendments to 21 existing UN Regulations, a corrigendum to UN Regulation 49, five new UN Regulations [179], [180], [181], [182], and [183], and an amendment to Schedule 2 to the Agreement. All amendments and the corrigendum have a provisionally determined entry into force date of 2 October 2026 while the four new UN Regulations adopted in March have expected EIF on 20 October 2026 (see ECE/TRANS/WP.29/1190, para. 114). Depositary notifications are available at http://treaties.un.org.

This draft reference document consolidates input from documents AI-07-06, AI-09-03, AI-09-04, AI-08-07, and AI-09-05 to fulfill the initial deliverable of the IWG on Artificial Intelligence pursuant to WP.29/1190. The document addresses AI uses and benefits in automotive, establishes AI use cases prioritizing regulated automotive safety applications, identifies potential risks across AI lifecycle stages, and presents illustrative risk management practices informed by literature review. Seven whole-system lifecycle risks are identified, including insufficient documentation and traceability, inadequate organizational governance, and process drift. Additional risks span AI and use case specification, model architecture and training, data management, verification and validation, and in-use monitoring. Risk management practices derive from standards including ISO 26262, ISO 21448, ISO 23894, and UN Regulations 155 and 156, complemented by research and policy frameworks.

The IWVTA IWG submitted an Informal Document regarding amendments to the General Guidelines on Transitional Provisions to introduce a new paragraph P in Annex 1 for the current V9&V9bis, Section II, and to add a headline to paragraph V and paragraph V.+1 in the same section. The IWVTA IWG submitted an Informal proposal regarding amendments to UN R0/09 series as an annual update on UN Regulations applicable to IWVTA. A joint workshop with the DETA IWG was held on 17 June 2026 in Flensburg, Germany with approximately 80 participants from authorities, technical services, and industry. Key outcomes include considering organizing a second workshop in Asia, conducting a survey on desirable DETA and IWVTA systems, and developing supporting materials explaining manufacturer application procedures.

Proposal to amend General Guidelines for United Nations regulatory procedures and transitional provisions in UN Regulations based on WP.29/2024/76, adding permanent transitional provisions applicable to all series of amendments allowing Contracting Parties to grant type approvals according to any preceding series of amendments and continue granting extensions of existing approvals, reorganizing series-specific transitional provisions with provisions for the XX Series and subsequent series, and deleting former para. V.9 and V.9bis provisions that shall be repositioned as permanent provisions.

The IWG on SCUNV reports on activities from March 2026 to June 2026. The IWG concentrates on drafting requirements for safe and clean used vehicles based on a multi-pillar approach including Roadworthiness Inspections, Periodical Technical Inspection, data sharing, and random testing. The IWG held meetings on 30 March 2026 and 15 June 2026. The IWG adopted document ECE/TRANS/WP.29/2026/10, the Resolution on the inspection criteria for Used Vehicles, for submission to the 199th Session of WP.29, targeting formal adoption at the 200th Session of WP.29 in November 2026. The IWG proposes extending its mandate to address feedback following adoption of the Resolution.

The Informal Working Group on PTI held its 43rd session on 8 May 2026, focusing on whole-life compliance implementation and review of PTI provisions in UN Regulations. The group confirmed that at least 20 UN Regulations contain incomplete, non-harmonised, and sometimes outdated PTI provisions. The IWG agreed to review PTI provisions in UN Regulations, submit proposals to WP.29, consult relevant GRs on suitable inspection methods, and develop targeted amendments to priority Regulations. Work continues on ePTI using diagnostic devices, PTI of automated vehicles, braking system provisions for new technologies, and LED lighting inspection challenges.

Proposal to:

• Insert new para. 6.1.1.9. exempting mirrors with lower edge mounted not less than 2 m above ground at maximum technical permissible mass from requirements of para. 6.1.1.3.,
• Amend para. 6.2.2.1.2. to specify requirements for external surface parts protruding less than 5 mm with blunted outward facing angles,
• Insert new para. 6.2.2.1.2.1. permitting dimension of projection determination by direct measurement or drawing reference,
• Insert new para. 6.2.2.1.2.2. establishing measurement by maximum variation of 100 mm diameter sphere distance,
• Amend para. 6.2.2.1.3. to exempt fixing holes or recesses with diameter or longest diagonal less than 12 mm from radius requirements if blunted,
• Amend para. 6.2.2.1.4. to exempt camera and monitor parts installed outside vehicle made of material with Shore A hardness less than 60,
• Amend para. 6.2.2.1.5. to limit requirements for internal camera and monitor parts made of material with Shore A hardness less than 50 mounted on rigid support to support only,
• Insert new para. 6.2.2.1.6. exempting CMS with lower edge mounted not less than 2 m above ground at maximum technical permissible mass from para. 6.2.2.1.1. requirements. Based on GRSG/110 and GRSG/2026/27.

Proposal to amend UN R86 braking and stability control requirements for Automated Driving Systems:

• Delete para. 1.2.5.,
• Amend para. 2.3. to specify that braking system functions are set out in para. 5.1.2.,
• Amend para. 2.5. to clarify transmission definition and composition,
• Amend para. 2.34.2.1. to define directional control as assisting driver or ADS in maintaining intended direction,
• Amend para. 5.1.2.1. to specify service braking system requirements for control and halting,
• Amend para. 5.1.2.2. to specify secondary braking system requirements including graduated action and steering control,
• Amend para. 5.1.2.3. to specify parking braking system requirements and mechanical locking,
• Amend para. 5.1.4.7. to require verification of electronic braking system status,
• Amend para. 5.2.1.2.1. to specify brake control requirements and return-to-off positions,
• Amend para. 5.2.1.2.7.2. to require independent energy reserves and warning devices,
• Amend para. 5.2.1.26.4. to permit parking brake application after powertrain deactivation and automatic application when vehicle stationary or driver leaves seat,
• Amend para. 5.2.1.26.5. to permit warning actuation delay until parking brake clamping detected,
• Amend para. 5.2.1.31. to specify emergency braking signal generation from service braking system application,
• Amend para. 5.2.2.24.6.3. to require pneumatic and electric control lines and automatic brake application for incompatible trailer connections,
• Amend para. 5.3. to introduce special provisions for vehicles equipped with Automated Driving System,
• Amend para. 5.3.3. to require transmission of warnings and detected faults to ADS before feature activation,
• Insert new para. 5.3.4. to permit disabling braking controls while ADS feature active,
• Insert new Annex 4 para. 1.1.3. permitting dedicated activation methods for vehicles of categories X and Y,
• Insert new Annex 4 para. 1.1.4. requiring manual driving mode testing for ADS-equipped vehicles,
• Amend Annex 19 Part 2 para. 1.1.4.1.4. to specify engine control independence from driver or ADS demand,
• Amend Annex 19 Part 2 para. 1.1.4.1.6. to reference driver or ADS selected locking,
• Amend Annex 21 para. 2.1.1. to specify vehicle stability function requirements and transmission to ADS while active,
• Amend Annex 21 para. 2.1.2. to detail function components and on-board information requirements,
• Amend Annex 21 para. 2.1.4. to require indication of interventions to driver or ADS,
• Amend Annex 21 para. 2.1.5. to specify failure detection and indication to driver or ADS,
• Amend Annex 21 para. 2.1.6. to require warning when trailer provides VDC Active information,
• Amend Annex 21 Appendix 2 para. 2.1. to specify validation test requirements and recorded motion variables,
• Amend Annex 22 para. 3.6. to require user handbook warnings about connector compatibility and marking specifications for automated connectors.

Proposal to amend the regulation to enable application to ADS vehicles, including: Proposal to amend braking equipment functions for Automated Driving Systems:

• clarify braking equipment functions for Automated Driving Systems,
• define transmission control and energy transmission,
• specify secondary and parking braking system requirements for ADS-equipped vehicles,
• permit disabling braking controls during ADS operation,
• establish testing procedures for vehicles of categories X and Y without manual driving controls,
• allow alternative static condition brake actuation testing.

Proposal to enable application to ADS vehicles:

• Amend the introductory text,
• Delete para. 1.2.4.,
• Amend paras. 2.3., 2.3.2., 2.3.4., 2.5.1.1.3., 2.15., 2.16., 4.4.3., 5.1.1., 5.1.2., 5.1.5., 5.4., 5.6.1., 5.6.1.2.9., 5.7.1., 5.8., 5.8.3., 6.1.4., 6.2., Annex 1 para. 5.6., Annex 4 para. 2.3.1., Annex 7 paras. 2.1.2. and 3.5.,
• Insert new paras. 2.5.1.1.4., 3.2.4., 5.1.1.1.–5.1.1.3., 5.5.3., 5.8.4.–5.8.6.3., 6.2.6.–6.2.9., 12.4.–12.4.7., Annex 1 paras. 5.6.1.–5.6.3., and Annex 3 para. 1.4.,
• Renumber former paras. 12.4. and 12.5.1. as 12.5. and 12.5.1.,
• From entry into force, no refusal of approvals under amended Regulation,
• From 1 September 2027, no obligation to accept prior series approvals first issued after that date,
• Until 1 September 2029, continued acceptance of prior series approvals first issued before that date,
• From 1 September 2029, no obligation to accept prior series approvals,
• Until 1 September 2030, type approvals may be granted for Automated Lane Keeping System vehicles not complying with para. 5.8.

Proposal to establish minimum inspection criteria for used vehicles before importation into countries. The Resolution provides inspection requirements across nine main categories including braking equipment, steering, visibility, lamps, axles, chassis, safety equipment, environmental emissions, and supplementary tests for passenger vehicles and battery/hybrid electric vehicles. The recommended inspection method includes visual inspections, functional checks, and performance testing using available techniques and equipment without vehicle dismantling. A Certificate of Roadworthiness and Communication Form example is provided for communication between importers and testing facilities.

Proposal to clarify that FVA displays indicating vehicle speed or distance traveled are not considered to be onboard speedometers or odometers for the purposes of paragraphs 5.1. and 5.2. of UN R39, including with regard to the visibility requirement during night and day in paragraph 5.2. since the speed displayed by the FVA is not the primary source of information.

Proposal to clarify the obligations of the manufacturer in relation to the provision of information regarding the location and safe use of emergency exits and fire extinguishers.

Proposal to clarify the obligations of the manufacturer in relation to the provision of information regarding the location and safe use of emergency exits and fire extinguishers

Proposal to harmonise and consolidate the regional procedures and limits, update the provisions to align with Euro 7 requirements, including new particle number (PN10) provisions, a new SHED limit for evaporative emissions, updated On-board Fuel Consumption Monitoring provisions, new annexes with requirements relating to in-vehicle battery durability and a new test for range of Pure Electric Vehicles at low temperatures. An informal document amending this proposal is under development.

Proposal to correct an editorial error regarding the markings for light source control gear, to clarify the calculation method (i.e., rounding down to three digits) for the acceptance criteria in cases where tolerance limits are calculated, and to delete provisions concerning the Unique Identifier pursuant to the decision to change its application from “by default” to “if specified in the regulation”.

Proposal to amend the Interpretation Document for UN R156. The document clarifies requirements in paragraph 7 and Annex 1 concerning software update and software update management systems to promote uniform assessments and align with the 01 series of amendments. The document provides non-mandatory guidance for demonstrating compliance with UN R156 requirements through documentation, presentation, and audit, with supporting reference to ISO 24089:2023. The proposal addresses processes for software updates after vehicle registration, including assessment of compliance impacts, documentation procedures, security measures, over-the-air update safeguards, and vehicle user notification requirements.

Proposal to amend UN R17, including revised definitions of head restraint, corrections to paragraph references, replacement of terminology such as “absorption” with “dissipation” and “reference line” with “longitudinal vertical plane passing through the R-point,” revised test procedures in multiple annexes, and modifications to measurement requirements for head restraint displacement and strength testing. The text was adopted by GRSP at its seventy-eighth session based on ECE/TRANS/WP.29/GRSP/78, Annex IV.A. Amendments

Proposal to amend UN R17 Supplement 1 to the 12 series of amendments. The Regulation is amended to account for vehicles of category X. Vehicles of category Y are not in the scope of this Regulation. The Regulation is extended to vehicles without driver and manual driving controls. Multiple amendments are made to definitions, test procedures, and technical requirements for seats, anchorages, and head restraints, including changes to measurement planes, test parameters, and displacement specifications across various annexes and paragraphs.

Proposal to correct inconsistencies in isolation resistance monitoring system requirements for vehicles of category O₃ and O₄ trailers to provide optical and/or audible warnings via CAN-Bus signal transmission. High voltage REESS isolation resistance requirement set at minimum 100 Ω/Volt or protection degree IPXXB fulfillment. Requirements do not apply to REESS solely installed on vehicles of category O or batteries used for recuperation.

Proposal to account for vehicles of categories X and Y, extend application to vehicles without driver and without manual driving controls, and address inconsistencies related to REESS provisions. The amendment introduces ADS feature types 1 and 2, modifies warning transmission requirements for ADSF-2, adjusts isolation resistance specifications, and exempts certain REESS requirements for category O and Y vehicles. Changes include updates to Annex 8 stopping conditions and Annex 9E terminology.

Proposal to replace “675 Nm ± 25 Nm” with “a minimum of 650 Nm but no more than 850 Nm” in Annex 4, paragraph 3.5., and in Annex 6, paragraph 2.4.1.

Proposal to modify requirements for headform acceleration derivation, windscreen testing, and approval marks. The document proposes notification procedures for Contracting Parties to share test results via the DETA database, deletes paragraphs 11.1 to 11.4, extends transition periods for atypical windscreen fracture behaviour testing until 1 September 2033 and WAD 2,100 boundary provisions until 1 September 2028, and adjusts bonnet top impact torque specifications from 675 Nm ±25 Nm to between 650 Nm and 850 Nm.

Proposal to extend application of UN R127 to vehicles of category X and those without drivers or manual driving controls, modify scope provisions, update headform acceleration criteria in paragraph 2.48, add new approval mark provisions distinguishing WAD 2,100 versus WAD 2,500 boundaries, require mandatory notification and uploading of test results to the DETA database, and set transitional provisions with dates through 2033 for type approvals and acceptance of previous amendments.

Proposal based on GRSP/2025/31 to amend para. 7.1.3.6. to require relevant intermediate dummies testing when Enhanced Child Restraint Systems require substantial modification for different sizes or when size range covers more than 3 size ranges and to delete paragraph 5.5. and renumber paragraphs 5.6. to 5.8. as 5.5. to 5.7.

Proposal to modify para. 6.2.1.1. regarding insert layers for small babies with stature below 50 cm, amend Annex 18, table 1 with updated shoulder height dimensions for statures 40 cm to 70 cm, update approval markings in Annex 2, and introduce transitional provisions with Contracting Parties no longer obliged to accept preceding series approvals from 1 September 2028.

Proposal to amend Annex 3, table 3, column “Number of cycles,” first row, is amended to read “60 per cent of initial cycle life (11 000 cycles).” and Annex 3, table 4, column “Number of cycles,” first and second rows, is amended to read “20 per cent of initial cycle life (11 000 cycles).”

Proposal to extend UN R134 to vehicles of category X (excluding vehicles of category Y), add provisions for Periodic Technical Inspections, modify hydrogen concentration warning requirements for ADS features of type 2 to transmit logic signals to the ADS, and adjust test cycle specifications in Annex 3.

Proposal to clarify that Child Restraint Systems approved according to UN R129 or R44 may be used in vehicles of categories M₂ and M₃ with a 3-point belt and/or ISOFIX attachments without further requirements. As a result, Part I of UN R170 covers Built-in Child Restraint Systems for securing children from 40 – 150 cm in forward facing and rearward facing vehicle seats and Part II addresses Child Restraint Systems approved according to UN R129 or R44 which may be installed in a bus seat with a 2-point belt.

Proposal to extend the scope to vehicles of category X (application to vehicles without driver and manual driving controls), to define door closure warning systems, address ADS features of type 1 and type 2, add requirements for door locking devices on vehicles equipped with ADSF-2, and modify references to driver-side impacts by impacts on one side of the vehicle.

Proposal to extend the scope to include vehicles of category X, replace “driver” by “occupant”, and separate the scope into vehicles with regard to protection of occupants against the steering mechanism and electrical shock in a frontal collision and steering controls with regard to protection of occupants in the event of impact.

Proposal to enable application to vehicles of category X. For vehicles equipped with an Automated Driving System other than vehicles of category X, in manual driving mode no special provisions apply. In a mode where an ADS feature is active, the relevant requirements for ADS vehicles apply.

Proposal to enable application to vehicles of category X (vehicles of category Y are not in scope). For vehicles of category X, the R point of the most forward passenger seat shall be taken instead of the R-point of the driver’s seat. Amendments address steering control contact requirements and modify occupant references.

Proposal to enable application to vehicles of category X, including prohibition of one-touch closing when an ADSF-2 is active, requirement for auto-reversing devices for power operated windows that can be operated by an ADSF-2, and user manual instructions for power-operated systems including warnings regarding improper use and driver and ADS responsibilities.

Proposal to enable application to vehicles of category X (vehicles of category Y are not in scope) with amendments addressing steering wheel hub provisions, cab positioning, and seating requirements for vehicles of category X. Cabs for vehicles of category X mounted in other positions than vehicle front shall not be taken into account for frontal collision simulation.

Proposal to enable application to vehicles of category X, including attention to ADAS/ADS sensors and providing specifications for test procedures and dummy positioning requirements for vehicles of category X in frontal collision protection testing.

Proposal to enable application to vehicles of category X, including clarifications to test procedures for asymmetric side structures and specifications for category X vehicles. In manual driving mode no special provisions or exemptions apply; in a mode where an ADS feature is active, the relevant ADS requirements apply. The regulation does not apply to vehicles of category Y.

Proposal to enable application to vehicles of category X with a gross vehicle mass of up to 3,500 kg. The most forward passenger seat R-point shall be taken instead of the driver’s seat R-point for vehicles of category X. Amendments clarify provisions related to sensors, testing procedures, and applicability to vehicles without drivers.

Proposal to enable application to vehicles of category X. Amendments specify dummy placement and positioning requirements for vehicles of category X, including provisions for both right and left hand traffic configurations. Vehicles of category Y are excluded from the scope.

Proposal to enable application to vehicles of category X (vehicles of category Y are excluded from the scope). For vehicles of category X, the R point of the most forward passenger seat shall be taken instead of the R-point of the driver’s seat. The proposal amends the provision on “anti-rotation device” to read, “An anti-rotation device for an ISOFIX semi-universal child restraint system consists of either a top tether, the vehicle dashboard, a support leg or any other means intended to limit the rotation of the restraint during a frontal impact”.

Proposal to enable application to vehicles of category X. In the absence of a driver or manual driving controls, provisions related to them shall not be taken into account if not already covered by this amendment. Vehicles of category Y are not in the scope of this Regulation. In manual driving mode, no special provisions or exemptions apply to vehicles equipped with an Automated Driving System other than vehicles of category X.

Proposal to enable application to vehicles of category X. For vehicles of category X, the R point of the most forward passenger seat shall be taken instead of the R-point of the driver’s seat. A seating position with steering control placed in front may be designated as suitable for Child Restraint System installation if requirements for a passenger seating position are fulfilled. The Regulation does not apply to vehicles of category Y.

Proposal to clarify exemptions for folding seats, delete a condition on neutral transmission position for first-level warnings, harmonize the “vehicle master control switch” definition with UN R159, ensure drivers receive initial warnings when entering vehicles with remotely activated switches, ensure clear voice communication during emergency calls, and enable application of UN R174 to vehicles of category X, including requirements for safety-belt reminders in first-row seats of category X vehicles and permission for ADS management of safety-belt reminders if equivalent safety is provided.

Proposal to modify paragraph 5.2.1.31 to clarify that when a vehicle is equipped with means to indicate emergency braking, activation and deactivation of the emergency braking signal shall only be generated by application of the service braking system regardless of its means of activation under the specified conditions.

Proposal to amend paragraph 5.2.1.31. regarding activation and de-activation of the emergency braking signal. When a vehicle is equipped with the means to indicate emergency braking, activation and de-activation of the emergency braking signal shall only be generated by the application of the service braking system regardless of its means of activation when the specified conditions are fulfilled.

Proposal to amend paragraph 5.2.1.31. to specify that when a vehicle is equipped with the means to indicate emergency braking, activation and deactivation of the emergency braking signal shall only be generated by the application of the service braking system regardless of its means of activation when the specified conditions are fulfilled.