Draft technical specifications establish mandatory ADS marker lamps on motor vehicles of categories M₁–M₃, N₁–N₃, L₆, and L₇, with front and rear lamps mandatory and side lamps mandatory or optional depending on vehicle length. Front lamps require daytime photometry of 50–300 cd and nighttime 10–125 cd; rear lamps require 20–120 cd daytime and 4–42 cd nighttime. Side lamps vary by type. All lamps are blue-green turquoise, mounted at minimum 250 mm height, and activate automatically only in fully automated mode with manual switching prohibited.

Proposal to amend explanatory text for UNR paragraph 3.2.3. (b) to clarify that the manufacturer should explain how they determine and apply the concept of the safety level of the ADS being at least to the level of a competent and careful human driver, accounting for national specificities, and that there may be different approaches used in applying this concept, including reference driver based approaches and behaviour-based approaches.

Proposal to amend guidance on continuous improvement processes in para. 7.1.8.2. by inserting text stating that post-deployment safety analyses are systematically performed for all occurrences; however, their conclusions do not necessarily result in the identification of a corrective action from the manufacturer, modifying text to state that not all identified corrective or preventive actions need to be implemented in order to close an occurrence, and replacing text to state decisions on what to address and how are based on an overall assessment of the consequences and the impact of implementing a change.

The sixteenth GRVA Workshop on ADS was held online on 20 March 2026 with 52 participants. The workshop adopted the agenda and minutes of the previous workshop. Experts presented updates on the guidance document covering testing provisions, In-Service Monitoring and Reporting, user interactions, Operational Design Domain, approval sections, and Safety Management System. The next workshop would be organized as a joint meeting with the IWG on ADS in Bangkok.

Corrections to documents submitted by TF-AVRS and approved by GRBP amend terminology in UN R51.03 to harmonize bidirectional spelling, correct vehicle category references in UN R51.03 and UN R165 to reference category X only rather than non-existent category M1Y or category M, clarify in UN R64 that logical signals shall be transmitted to the ADS when an ADS feature is active, introduce references to specific ADS provisions in Annexes 5 and 7 of UN R138.02 and UN R165, add grammatical corrections to UN R141, and align UN R165 terminology with ADS regulation language.

The agenda includes discussion of the upcoming process for submission of documents and corrections to documents submitted by TF AVRS with track changes and justifications, and consideration of next meetings.

Proposal to amend ECE/TRANS/WP.29/2026/89, ECE/TRANS/WP.29/2026/90, ECE/TRANS/WP.29/2026/95, ECE/TRANS/WP.29/2026/96, and ECE/TRANS/WP.29/2026/98 to modify para. 2.11.3. to define reference point for bi-directional vehicles, amend para. 2.31. to define bi-directional, amend Annex 3 Table 2 test mass values for vehicles in categories X and Y and vehicles equipped with ADS, amend para. 5.1.6.1. to specify logical and optical signals for category X or Y vehicles with ADS, amend para. 6.2. to reference ADS-specific provisions in Annex 5, amend Annex 9 paras. 2.2., 2.2.1., and 2.2.2. regarding vehicles equipped with ADS other than categories X and Y, amend para. 11.7. to define Category Y vehicles, add new para. 14.1.6. specifying ADS provisions in Annex 7, and amend para. 14.3. regarding pause function design for ADS features.

Corrections to documents submitted by TF-AVRS and subsequently by GRBP were adopted without additional proposals. The next meeting is to be scheduled at a later date, if needed.

The document addresses consistency issues across multiple UN Regulations (R26, R28, R29, R34, R35, R39, R43, R45, R46, R48, R49, R134, R135, R137, R138, R141, R142, R143, R144) concerning automated driving systems. It proposes improved wording for fuel leakage provisions, foot control applicability for vehicles of category M₁, and speedometer requirements when ADS features are active. The document recommends removing duplicate definitions of ADS, DDT, bi-directional vehicle, and forward direction across regulations. It raises questions regarding application to category Y vehicles, handling of bi-directional traffic equipped vehicles, and whether requirements should apply to vehicle users or only when ADS features are active.

The agenda includes amendments to UN Regulations and GTRs regarding their fitness for automated vehicles, review of documents received for review, compilation of an informal editorial document for the 199th session of WP.29, future steps of the work, review of past open and low-priority items, discussion on future needs for ADS fitness and general regulatory fitness, and agreement on the contents of the final presentation to WP.29.

Proposal to amend UN R160:

• Amend definitions 2.8., 2.10., and 2.11. to clarify that automatically commanded steering function categories B2, D, and E are not part of a DCAS
• Delete definition 2.25.
• Amend definition 2.35. to simplify non-volatile memory
• Amend para. 2.45. to change service brake terminology
• Amend para. 2.51. to clarify time interval between events
• Amend para. 2.65. to abbreviate vulnerable road user
• Insert new definitions 2.71.–2.83. for rollover protection system, advanced emergency braking system, trigger activated, pre-event synchronization timer, blind spot monitoring system, emergency stop signal, turn signal, acceleration control for pedal error, advanced driver distraction warning system, driver drowsiness and attention warning system, driver control assistance system, and time to collision
• Restructure para. 5.3.1. to distinguish planar, VRU, and rollover events from AEBS events with specified triggers
• Amend para. 5.3.2. to clarify data locking conditions
• Restructure para. 5.3.3. to establish time zero for planar, VRU, rollover, and AEBS events
• Amend para. 5.4.3. to specify side and frontal collision tests
• Amend para. 6.1. to clarify post-crash acceleration measurement
• Insert transitional provisions 12.12.–12.16. providing that as from the official date of entry into force Contracting Parties shall not refuse type-approvals under the 03 series, as from 1 September 2031 or 2029 [date TBD] shall not accept type-approvals to preceding series first issued after that date, until 1 September 2033 shall continue accepting preceding series approvals first issued before 1 September 2031 or 2029 [date TBD], may grant approvals to preceding series, and shall grant extensions of existing approvals
• Amend Annex 4 Table 1 to split engine throttle and accelerator pedal data elements, increase sampling rates to 10 Hz, extend recording intervals for rollover events, add pre-event synchronization timer, trigger activated, ACPE status, ADDW status, DDAW status, blind spot monitoring status, turn signal status, DCAS status, DCAS driver monitoring system warnings, emergency stop signal status, and time to collision data elements, and modify footnotes accordingly

Presentation on technology and application validation of VRU protection services across three parts. Part 1 validates functional and process validation; Part 2 tests performance under low-density scenarios; Part 3 tests performance under high-density scenarios with three sub-scenarios: sensing multi-VRUs, multi-services concurrency, and multi-VRUs transmitting PSMs concurrently. Validation encompasses three communication approaches: vehicle-to-vehicle, infrastructure-to-vehicle, and vehicle-to-pedestrian, assessing protocol conformance, communication performance, sensing performance, and service logic triggering mechanisms.

The agenda includes discussion of EDR Step 2 documents and EDR for ADS documents, review of action items and schedule of future meetings, and adjournment. Future meetings are scheduled for September 8, 2026, and October 6-8, 2026.

France requests that the implementation date for all new vehicles be extended until September 2034 rather than the currently proposed date.

Proposal to amend ECE/TRANS/WP.29/2026/139 and ECE/TRANS/WP.29/2026/1:

• Insert new paragraph 5.2.1.8.1 requiring manufacturers to document the scope of each simulation toolchain and identify its limitations,
• Remove paragraph 5.2.1.3.1.,
• Amend paragraph 5.3.1.16. to describe how the ADS feature responds to failure situations including fallback operation, redundancy, diversity of systems, or removal of automated driving functions,
• Amend paragraph 6.3.2.2.3. to read assessment instead of approval authority or its designated technical service,
• Amend paragraph 6.3.3.3.1. to clarify that paragraphs 6.3.3.3.2. to 6.3.3.3.9. apply when confirmatory track testing is conducted or required,
• Amend Annex 5 table 3 to replace bracketed values with examples,
• Replace square brackets with parenthesis in Annex 5 table 4 row 2,
• Remove square brackets from Annex 5 table 4 row 3,
• Amend Annex 7 table 5 rows 2 and 3 column 7 to describe fallback to mitigated risk condition and deceleration limits,
• Correct reference in Annex 6 table from 7.3.1.15 to 5.3.1.15,
• Remove brackets in Annex 6 paragraph 5.3.1. and amend paragraph 5.3.2. to remove brackets around table and record visual images mandatory from -7 to +7 seconds,
• Amend paragraph 137 in ECE/TRANS/WP.29/2026/1 to describe the seventeenth workshop in Bangkok and agreement to finalize remaining open items at the July 2026 Brussels workshop.

Proposal to amend ECE/TRANS/WP.29/2026/86:

• Renumber reference to para. 5.3.7.2.1.1.1. to 5.3.7.2.4.10.,
• amend para. 5.3.7.2.4.2. to replace “Further” with “The”,
• amend para. 5.3.7.2.5.3.1. to insert “or highway-like road”,
• amend para. 5.3.7.2.6.1. to delete maximum operating speed language and revise testing conditions,
• amend para. 6.4.2. to add “for more than 2 seconds immediately prior to the drive off”,
• amend Table 1 item 4.c in para. 7.2.3.1. to add “while the driver is detected to be disengaged”,
• replace “definitely” with “definitively” in para. 14.2. and Annex 3,
• insert new para. 16.2.3. establishing 1 September 2029 date for non-acceptance of type approvals,
• amend Annex 1 para. 6.4. to renumber and revise highway-like roads language,
• renumber reference in Annex 3 para. 3.5.7.,
• amend Appendix 2 of Annex 3 para. 2.3.2.,
• amend and delete multiple Annex 4 diagrams and test conditions,
• amend test execution requirements.

The Task Force on Vehicular Communications held its thirteenth session on 23rd January 2026 in Geneva. Presentations on Vulnerable Road Users protection were delivered by Japan, China, and Car2Car, addressing VRU accident analysis, pilot projects, national standardization frameworks, and collective perception approaches. Common themes included sensor limitations, functional safety needs, and harmonized communication standards. The Task Force agreed to continue discussions at its next session.

The agenda includes discussions on protecting vulnerable road users.

SAE J3224 supports vehicle-based V2X sensor sharing via SDSM. SAE J3224/1 describes infrastructure-based detection and sharing of VRU information, with final approval in Motor Vehicle Council balloting and publication planned for August 2026. SAE J3251 specifies OBU device requirements for CDA-equipped vehicles and wheeled VRU types, with publication targeted for Q3 2027. SAE J5001 on PSM communications is on hold due to spectrum limitations and market adoption issues.

Proposal for editorial modifications to official documents introducing ADS-related amendments to WP.29/2026/59, WP.29/2026/61, WP.29/2026/62, WP.29/2026/48, WP.29/2026/63, WP.29/2026/64, WP.29/2026/65, WP.29/2026/66, WP.29/2026/50, WP.29/2026/53, WP.29/2026/57, WP.29/2026/67, WP.29/2026/68, WP.29/2026/69, WP.29/2026/70, WP.29/2026/71, WP.29/2026/72, WP.29/2026/162, WP.29/2026/163, WP.29/2026/147, WP.29/2026/148, WP.29/2026/149, WP.29/2026/150, WP.29/2026/151, WP.29/2026/154, WP.29/2026/101, WP.29/2026/102, WP.29/2026/103, WP.29/2026/104, WP.29/2026/105, WP.29/2026/106, WP.29/2026/107, WP.29/2026/108, WP.29/2026/109, WP.29/2026/110, WP.29/2026/111, WP.29/2026/112, WP.29/2026/113, WP.29/2026/114, WP.29/2026/115, WP.29/2026/116, WP.29/2026/118, WP.29/2026/117, WP.29/2026/119, WP.29/2026/120, WP.29/2026/121, WP.29/2026/122, WP.29/2026/125, WP.29/2026/126, WP.29/2026/127, WP.29/2026/129, WP.29/2026/130, WP.29/2026/131, WP.29/2026/132, WP.29/2026/165, WP.29/2026/166, WP.29/2026/134, WP.29/2026/159, WP.29/2026/124, WP.29/2026/133, WP.29/2026/158, WP.29/2026/89, WP.29/2026/90, WP.29/2026/95, WP.29/2026/98, and WP.29/2026/145.

This document amends formal proposals adapting regulations for Automated Driving Systems application in WP.29/2026/59, WP.29/2026/61, WP.29/2026/62, WP.29/2026/48, WP.29/2026/63, WP.29/2026/64, WP.29/2026/65, WP.29/2026/66, WP.29/2026/50, WP.29/2026/53, WP.29/2026/57, WP.29/2026/67, WP.29/2026/68, WP.29/2026/69, WP.29/2026/70, WP.29/2026/71, WP.29/2026/72, WP.29/2026/162, WP.29/2026/163, WP.29/2026/147, WP.29/2026/148, WP.29/2026/149, WP.29/2026/150, WP.29/2026/151, WP.29/2026/154, WP.29/2026/101, WP.29/2026/102, WP.29/2026/103, WP.29/2026/104, WP.29/2026/105, WP.29/2026/106, WP.29/2026/107, WP.29/2026/108, WP.29/2026/109, WP.29/2026/110, WP.29/2026/112, WP.29/2026/113, WP.29/2026/114, WP.29/2026/115, WP.29/2026/116, WP.29/2026/117, WP.29/2026/118, WP.29/2026/119, WP.29/2026/120, WP.29/2026/121, WP.29/2026/122, WP.29/2026/123, WP.29/2026/124, WP.29/2026/125, WP.29/2026/126, WP.29/2026/127, WP.29/2026/128, WP.29/2026/129, WP.29/2026/130, WP.29/2026/131, WP.29/2026/132, WP.29/2026/133, WP.29/2026/134, as well as WP.29/2026/165 and WP.29/2026/166. The amendments update footnotes across documents to reference the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.8. The document modifies provisions related to Automated Driving Systems and Advanced Driver Assistance Systems sensors, test mass specifications, logical signal transmission, acoustic characteristics, category definitions, and occupant compartment requirements across multiple regulations.

Proposal to amend Appendix 1 to Annex 1 to revise the model of declaration of compliance for Software Update Management System Manufacturers and amend Annex 4 to revise the model of Certificate of Compliance for Software Update Management System.