The Eighteenth GRVA Workshop on ADS will be held on 1 June 2026 from 12:30–14:30 Geneva time online via MS Teams. The workshop will adopt the provisional agenda and minutes of the 16th GRVA workshop on ADS. Participants will receive briefing on highlights from the informal part of the 25th GRVA held in Montreal from 18–22 May 2026. The workshop will review the timeline for delivering the Guidance and Interpretation Document as an informal document at the 200th WP.29 session and as an official document for consideration at the March 2027 session. OPIs will inform participants on their development activities for the guidance and interpretation document.

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.

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.

This Guidance and Interpretation Document (GID), based on GRVA/2026/3 as amended by GRVA-24-29 and WP.29-198-09, supports implementation of proposed UN Global Technical Regulation and UN Regulation on Automated Driving Systems. The GID, structured in table format with regulatory text and explanatory guidance with examples, facilitates interpretation of ADS requirements when applying them to particular vehicles or vehicle types. The document addresses ADS safety, system descriptions, operational design domains, performance in nominal, critical, and failure situations, interactions between ADS and users, manufacturer safety management systems, test environments including simulation credibility frameworks, safety cases, post-deployment safety monitoring, and compliance assessments including confirmatory testing. Materials will be restructured and refined for submission to GRVA’s September 2026 session.