Software identification and updates for vehicles no longer in production. UN R156 series 01 introduces mandatory RXSWIN for software updates after registration. RE3 Annex 7, UN R157, UN R171, and UN R185 define type approval rules post-production. Manufacturers may apply for new approvals to differentiate software for registered vehicles from new vehicles, covering type approval regulation updates or hardware changes. Duplication of tests shall be avoided where possible. National Type dates need not be respected for new approvals under the 1958 Agreement.

The document describes WP.29’s approach to regulating Driver Control Assistance Systems and Automated Driving Systems. It outlines safety management system requirements including safety policy, risk management, assurance and promotion; safety case requirements for structured documentation demonstrating ADS compliance and freedom from unreasonable risk; and safety concept requirements for risk identification, hazard analysis, ODD compatibility and occupant protection. Testing and verification encompasses virtual testing using simulation toolchains, track testing and real-world testing. Virtual toolchain validation establishes credibility before use. In-service monitoring and reporting requires manufacturers to monitor ADS performance post-deployment and report significant incidents to authorities.

The DDADWS 10th (October 2026) session discussed proposals to:

• Clarify DDAW system warning acknowledgement and continued monitoring,
• Introduce mandatory microsleep detection as an independent function,
• Expand operating conditions to cover varied driving environments including glare and roads without lane markings,
• Ensure drowsiness monitoring continues when DCAS is active at equivalent performance levels,
• Establish requirements for system functionality under driver occlusions such as eyewear,
• Adopt a hybrid warning threshold distinguishing optional advisory information at KSS 6–7 from mandatory warnings at KSS 8 and above,
• Revise false negative classification to record successive events after defined delay periods while driver remains drowsy,
• Introduce specificity and Positive Predictive Value as performance metrics alongside sensitivity,
• Incorporate Observer Rated Drowsiness as an additional primary measurement with ORD-specific thresholds pending results of ongoing Japanese driving simulator study,
• Enhance validation test methodology regarding participant demographics, preconditioning, repeated testing, and near-crash event capture.

Proposal to amend UN R13 (supplements to the 11, 12, 13, 14, and 15 series of amendments), UN R13-H (supplements to the 01 and 02 series of amendments and original version), UN R79 (supplement to series 01, 02, 03, 04, and 05 of amendments), UN R89 (supplement), UN R130 (supplements to original version and 01 series of amendments), UN R131 (supplements to original version, 01 series, and 02 series of amendments), UN R152 (supplements to original version, 01 series, and 02 series of amendments), UN R156 (supplement to 01 series of amendments), UN R157 (supplements to original version and 01 series of amendments), UN R171 (supplements to 01 and 02 series of amendments and original version), UN R175 (supplements to 01 series of amendments and original version), and UN R178 (supplement to original version), to introduce provisions on software identification and software updates. Changes include inserting definitions for Software Identification Number, adding requirements for manufacturers to provide software and system parameter information to Technical Services, allowing vehicle manufacturers to apply for new approvals to differentiate software versions for in-market vehicles from new vehicles, clarifying that production is not considered definitively discontinued if the manufacturer obtains extensions for software updates of registered vehicles, and inserting new communication form items for software identification and update information.

Provisional agenda for GRVA’s twenty-seventh session to be held 18-22 January 2027 in Geneva. Items include adoption of the agenda, highlights from the November 2026 WP.29 session, artificial intelligence in vehicles, automated and connected vehicles, advanced driver assistance systems, advanced emergency braking and blind spot information systems, UN Regulations Nos. 13, 13-H, 139, 140 and UN GTR No. 8, motorcycle braking, UN Regulation No. 90, exchange of views on guidelines and national activities, Revision 3 to the 1958 Agreement, election of officers, and other business including the climate change mitigation strategy and programme of work.

GRVA’s twenty-sixth session reviewed the Informal Working Group on Automated Driving Systems’ progress and adopted revised Terms of Reference for Phase II, establishing the Workshops on ADS implementation with Terms of Reference and Rules of Procedure. GRVA adopted amendments to UN R157 addressing Safety Management System provisions and clarifying requirements for ALKS activation across multiple territories, with supplements to the original version and 01 series of amendments. GRVA adopted amendments to UN R155 and UN R156 concerning software identification and software updates provisions, approved Supplement 4 to UN R155 clarifying its scope, and adopted amendments addressing Approval Authority arrangements for Certificates of Conformity. GRVA adopted amendments to UN R171 aligning continued compliance provisions with UN R157, adopted amendments to UN R79 regarding steering equipment and remote-control parking, adopted amendments to UN R13 and UN R13-H concerning trailer braking systems, and adopted amendments to UN R90 addressing replacement braking parts. GRVA established the Task Force on Exchange of Scenario-Relevant Information with Terms of Reference and Rules of Procedure, discussed automated vehicle categorization and automated parking systems, and reviewed ongoing work on Artificial Intelligence in vehicles, cyber security, data protection, advanced driver assistance systems, and motorcycle braking.

Document outlining the 1st DETA/IWVTA Workshop held on 17 June 2026 in Flensburg, Germany. The workshop covered presentations on what DETA and IWVTA are, industry and government expectations, and issuance and acceptance of IWVTA certificates in the EU. Survey responses from 15 participants, including from Southeast Asian countries, indicated needs for more explanation on DETA access rights, onboarding processes for new Contracting Parties, and clearer guidance on how IWVTA can be modified to suit individual markets. Suggestions included developing supporting materials and guidelines on IWVTA application procedures and organizing a second workshop in Japan or Asia.

Presentation on maintaining effective drowsiness monitoring when Driver Control Assistance System (DCAS) is active. A DDAW system using indirect means cannot effectively assess driver drowsiness when the driver is not nominally required to steer, brake, or accelerate. Hands-on or eyes-on engagement does not establish alertness. Either the DDAW system or an alternate system should meet prescribed DDAW system performance while DCAS is active, with no gap in coverage or performance. UN R171 02 series amendments do not prescribe DDAW-equivalent performance criteria for drowsiness determination.

GRVA will continue to establish and maintain the United Nations regulatory framework for Automated Driving Systems, including UN R185 and GTR 26. GRVA will continue its work on cyber security, over-the-air software updates, and the Data Storage System for Automated Driving. GRVA will focus on implementation of ADS and development of provisions for the Exchange of Scenario-Relevant Information. GRVA will further elaborate requirements for Advanced Driver Assistance Systems, building on UN R79 and UN R171, and for Automated Emergency Braking Systems, building on UN R131 and UN R152.

Document outlining GRVA’s priority activities for 2027 based on ECE/TRANS/WP.29/2026/1. GRVA will continue establishing and maintaining the United Nations regulatory framework for Automated Driving Systems, including UN R185 and GTR 26, with work on cyber security, over-the-air software updates, and the Data Storage System for Automated Driving. GRVA will focus on ADS implementation, provisions for Exchange of Scenario-Relevant Information, and elaboration of requirements for Advanced Driver Assistance Systems and Automated Emergency Braking Systems building on UN R79, 171, 131, and 152.

Proposal to insert definitions for Software Identification Number, insert requirements for manufacturers to provide necessary information allowing the Technical Service to uniquely identify hardware and software configurations, insert provisions allowing vehicle manufacturers to apply for new approvals to differentiate software versions for registered versus new vehicles, amend production discontinuation provisions to clarify that cessation is not deemed definitive if the manufacturer intends to obtain subsequent extensions for software updates of vehicles already registered in the market, renumber and insert new items in approval communication annexes regarding software identification and software updates including RxSWIN, and insert provisions allowing vehicle manufacturers to obtain new approvals for software version differentiation across multiple UN Regulations (13, 13-H, 79, 89, 130, 131, 139, 140, 152, 155, 156, 157, 171, 175, and 178).

Proposal to:

• Insert new Introduction paragraph 17 describing continuous review of DCAS based on technology development and monitoring data,
• Amend para. 2.11. to define ‘Target Lane’,
• Amend para. 5.3.5.1. to specify system boundary detection and assistance termination,
• Amend para. 5.3.7.1.4. to require warning signals when steering support diminishes,
• Amend para. 5.3.7.2.1.1. to require driver non-disengagement for 2 seconds before manoeuvre initiation,
• Insert para. 5.3.7.2.1.13. requiring manufacturer description of system behaviour if driver disengages during manoeuvre,
• Amend para. 5.3.7.2.3.1. to ensure sufficient driver confirmation time,
• Amend para. 5.3.7.3.1. to require compliance with 04 or later series of UN R79 Risk Mitigation Function,
• Amend para. 5.3.7.5.1.1.2. to require driver information on headway configuration below 2 seconds,
• Amend para. 5.5.3.1. to require ‘off’ mode at powertrain initiation,
• Amend para. 5.5.4.1.1. to add intended driver-confirmed manoeuvres to driver information,
• Renumber and amend para. 5.5.4.2.2.3. to prioritize simultaneous emergency assistance system warnings,
• Amend paras. 5.5.4.2.5.2. and 5.5.4.2.5.2.1. to define visual disengagement and re-engagement criteria,
• Amend para. 5.5.4.2.7. to add disengagement detection strategies,
• Amend para. 5.5.4.2.8.1. to disable system activation upon prolonged insufficient engagement,
• Amend para. 6.2.4.1. to specify deceleration limits for approaching vehicles,
• Amend para. 14.2. to exclude software update approvals from discontinuation determination,
• Delete Annex 3 paras. 2.15. and 2.16.,
• Amend para. 3.1.1. to specify documentation package retention periods of 10 years from production discontinuation,
• Renumber para. 3.5.7. to 3.4.5.,
• Insert new para. 3.5.5. on safety management during operation phase,
• Renumber former para. 3

Proposal to:

• Amend the introduction to clarify that the regulation is established based on current technology and limited vehicle data, with continuous review based on technology development and monitoring data,
• Amend the definition of ‘Target Lane’,
• Insert a definition of ‘Highway-like road’,
• Amend requirements for system boundary detection, steering support at boundaries, manoeuvre initiation conditions, lane change responses, driver unavailability response, and driver disengagement detection,
• Amend provisions for withholding of hands-on-requirements on highways and highway-like roads up to 130 km/h,
• Insert requirements for system behaviour when driver disengagement is detected during manoeuvres,
• Amend approaching vehicle deceleration requirements,
• Amend production discontinuation criteria,
• Insert documentation requirements for system information strategy and operation phase safety management,
• Amend Annex 4 testing provisions to include bicycle target testing and provisions for non-rule-based algorithms,
• Amend simulation tool criticality analysis requirements in Annex 5.

Proposal to amend footnote 25 to reduce the maximum number of recorded DCAS warnings from 15 to 10 per current ignition cycle. The justification presented cites data burden reduction while retaining information about habitual driver disengagement patterns. Supporting documentation references two autopilot collision cases—Florida 2016 and California 2018—where recorded warnings within existing data retention periods would have revealed repeated disengagement that current recording parameters miss, demonstrating that 10 warnings combined with extended recording duration enables identification of ineffective warning strategies.

Proposal to amend GRVA/2026/27, which proposes amendments to UN R13, UN R13-H, UN R79, UN R89, UN R130, UN R131, UN R139, UN R140, UN R152, UN R156, UN R157, UN R171, UN R175, and UN R178:

• Throughout these regulations, amend references to the Consolidated Resolution on the Construction of Vehicles (R.E.3) as document ECE/TRANS/WP.29/78/Rev.8,
• insert new definitions for Software Identification Numbers referring to R.E.3 Annex 7 para. 2,
• amend requirements for software identification to require manufacturers provide necessary information allowing Technical Services to uniquely identify hardware and software configurations,
• insert new provisions allowing vehicle manufacturers to apply for new approvals differentiating software versions for vehicles already registered in the market from new vehicles,
• amend production discontinuation provisions to clarify production is not considered definitively discontinued if manufacturer intends to obtain subsequent extensions of approval for software updates of registered vehicles,
• insert new items in annexes regarding additional information on software identification and software updates including R_xSWIN identification, whether held on vehicle, how to read if not held on vehicle, and relevant parameters for vehicle identification.

Proposed changes to align RxSWIN provisions with the RxSWIN template adopted through WP.29-197-06, remove the proposed requirement to comply with UN R156/01 or later from R157 and R171, remove amendments to UN R155 as decided by the IWG CS/OTA, apply the RxSWIN amendments also to earlier series of amendments in R13, R13-H, R79, R131, R152, R157, and R171, update references to the latest version of R.E.3, ECE/TRANS/WP.29/78/Rev.8, in earlier series, and correct paragraph references and improve structure in R89, R139, R140, R155, R156, and R171.

Session report of WP.29 (World Forum for Harmonization of Vehicle Regulations), its Administrative Committee of the 1958 Agreement (AC.1), Executive Committee of the 1998 Agreement (AC.3), and Administrative Committee of the 1997 Agreement (AC.4) held 23-26 June 2026 in Geneva. AC.1 voted on 92 amendments to existing UN Regulations, one corrigendum to UN Regulation No. 79, and three new UN Regulations (Nos. 184-186) on liquid hydrogen vehicle safety, automated driving systems, and tyre abrasion performance. AC.3 established UN GTR on automated driving systems and adopted corrigendum to UN GTR No. 9 and Amendment 2 to UN GTR No. 13. WP.29 extended mandates of several informal working groups and noted accession of Mongolia and Armenia to the 1958 and 1997 Agreements respectively.

Proposal to insert provisions on Software Identification Numbers and software updates across UN R13, R13-H, R79, R89, R130, R131, R152, R155, R156, R157, R171, R175, and R178 by adding definitions referencing Consolidated Resolution R.E.3 Annex 7 paragraph 2, requiring manufacturers to provide Technical Services with information on hardware and software influencing performance with test reports, permitting vehicle manufacturers to apply for new approvals differentiating software versions for registered vehicles from new vehicles where type approval regulations are updated or hardware changes occur in series production with test duplication avoided where possible, clarifying that production is not considered definitively discontinued if manufacturers obtain subsequent extensions for software updates of registered vehicles, renumbering and inserting new items in approval communication annexes for R13SWIN, R13-HSWIN, R79SWIN, R89SWIN, R130SWIN, R131SWIN, R152SWIN, R155SWIN, R157SWIN, R171SWIN, R175SWIN, and R178SWIN information including whether held on vehicle and relevant parameter identification lists, and amending R157 and R171 to align software update requirements with R156 technical specifications and transitional provisions.

Proposal to amend para. 3.5.1. in Annex 3 to require the manufacturer to demonstrate to the Type Approval Authority at least every three years that the safety management system continues to comply with requirements for software and hardware employed in the system to manage safety and continued compliance throughout the product lifecycle. This amendment resolves outstanding issues in the 01 series of amendments to UN Regulation No. 171.

Proposal to insert provisions on software identification and software updates into UN R13, UN R13-H, UN R79, UN R89, UN R130, UN R131, UN R152, UN R156, UN R157, UN R171, UN R175, and UN R178 by adding definitions referencing Consolidated Resolution R.E.3 Annex 7, requiring manufacturers to provide Technical Services with information on hardware and software influencing performance, permitting vehicle manufacturers to apply for new approvals differentiating software versions for registered versus new vehicles, clarifying that production discontinuation does not apply when manufacturers seek approval extensions for software updates of registered vehicles, and amending communication forms to include software identification numbers and related information.