Document presents development of traumatic brain injury risk functions for frontal crash assessment. Brain strain-based injury risk functions were developed using human and non-human primate injury data from experimental studies, calculated using finite element brain models. Kinematics-based injury risk functions were derived by converting strain-based functions using correlations with head rotational kinematics metrics. Injury risk functions were developed for each kinematics-based metric selected through correlation analysis with maximum principal strain in brain tissue.
Status report on the 1998 Agreement global registry and compendium of candidates as of 13 November 2026. The document presents the current state of play for multiple UN GTRs across working parties GRVA, GRSP, GRPE, GRBP, and GRSG, including informal groups, technical sponsors, formal proposals, and draft UN GTR proposals. It details progress on items such as Automated Driving Systems, Electric Vehicle Safety, Equitable Occupant Protection, and various amendments to existing GTRs, with notes on AC.3 endorsements and adoption dates.
Report of the 57th session of the IWG on DETA held on 13 November 2026. The session covered the state of play with 153,000 approvals uploaded by 23 approval authorities, a new DETA software version introducing two-factor authentication and internal mail functionality with migration expected Q1/2027, widening the scope to include a scenario database for automated driving and potential use for sharing technical information on brake emission of non-original parts, amendments to guidelines for UNR155 reflecting changes to the new software version, and plans for a joint IWVTA/DETA workshop on 24 June 2027.
Report on the secure internet database DETA for exchanging approval documentation between Contracting Parties of the 1958 Agreement. DETA has 41 notified Focal Points, approximately 153,300 approvals uploaded by 23 TAA, and approximately 8,700 manufacturers available. Migration to new software version with enhanced features including two-factor authentication, mailing functions, adaptations for UN R155/171/157 guidelines, and additional languages is planned for Q1/27. The IWG on DETA highlights DETA as an open, neutral, trustful platform for authorities to exchange compliance documents and invites input on new use cases.
Guidance document for approval authorities on using DETA to implement UN Regulation No. 155. Notifying authorities shall upload cyber security information as PDF files no later than 14 days before granting a first-time approval, complete mandatory fields including approval number and date, and send a notification message to other authorities via DETA. Other approval authorities may submit comments within 14 days of notification by email and DETA message. Notifying authorities shall upload received comments to DETA without undue delay. These procedures apply before first-time approvals and each time assessment methods or criteria are updated.
Draft minutes of the 17th meeting of the IWG EqOP held on 14 October 2026. The IWG’s strategic objective is to achieve more equitable and robust occupant protection for a diverse population through inclusive regulations and protection strategies that reduce injury risk below a tolerable threshold for as many occupants as possible. The priorities endorsed by GRSP remain rear impact protection, frontal impact restraint systems, and the assessment of injury types that are currently insufficiently addressed, particularly brain, soft-tissue neck, and lower-extremity injuries. The Chairs reviewed progress of task forces and introduced the proposed theme of the Tokyo workshop: robustness assessment of occupant protection.
The IWG on AI reports on its meetings held since July 2026 and activities including compilation of literature on regulated automotive safety systems using AI, creation of terms and definitions, listing of AI use cases, and work on an AI reference document (latest draft AI-11-03). An AI reference document is scheduled for submission as a formal working document to the June 2027 WP.29 session. Small drafting groups are creating proposed updates for introduction, section 2, and section 4 based on AI-11-03 as baseline.
Feedback from a dedicated workshop on virtual testing as an optional alternative to physical tests in UN Regulations and GTRs. The UK/EC proposal, based on UN R185 ADS, and OICA’s multi-layer approach are presented. Outstanding issues include authority and technical service qualification requirements, definitions and terminology, credibility levels, and uncertainties and safety margins. Participants proposed organizing another workshop in January, establishing a small working group, and requesting written contributions to improve the UK/EC proposal. A new status report is expected during the 201st WP.29 session.
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