The session is scheduled for May 19, 2026, from 05:30 to 08:00 EDT. The agenda includes discussion of UN GTR 22 and UN GTR 25 regulatory topics covering conditioning cycles, SOCE readiness monitor, MPRs, SOCR, mutual recognition, FCEVs, highly integrated systems, efficient test methods, OICA comments, MPRs and energy throughput, normal usage indices, Part C virtual distance verification, Annex 2 alternative test method, and battery replacement provisions. UN GTR 25 Amendment 2 must be submitted to March 2027 GRPE by December 2026 deadline.
The Informal Working Group on EV/HFCV Retrofit Systems held its eighth meeting on 21 April 2026. The group discussed cybersecurity principles, requiring retrofitted vehicles not to reduce safety or cybersecurity performance compared with UN R155 requirements, with differentiated approaches for base vehicles approved or not approved to UN R155. Braking compliance, EMC testing references, and UN draft regulation changes including renaming to “vehicles intended to be transformed into pure electric vehicles” and introducing Electric Powertrain Retrofit Systems definitions were addressed. PTI-related aspects and the need for written contributions were highlighted before providing the draft regulation to GRPE in October.
This document is a draft Guidance and Interpretation Document (GID) for UN Global Technical Regulation and UN Regulation on Automated Driving Systems, based on GRVA/2026/3 as amended by GRVA-24-29 and WP.29-198-09. The GID provides explanatory text, guidance, and examples to support implementation of ADS requirements without introducing new obligations. It covers scope, definitions, application for approval, approval procedures, ADS performance requirements in nominal, critical, and failure situations, interactions between ADS and users, safety management systems, test environments including simulation credibility frameworks, safety case requirements, post-deployment safety monitoring with reportable occurrences, and compliance assessment procedures. The document clarifies terminology including operational states of ADS features, critical occurrences, driving situations, and mitigated risk conditions, and provides detailed guidance on ODD definition, safety case structure, confirmatory testing approaches, and in-service reporting templates with threshold definitions for critical occurrences.
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Automotive Life Cycle Assessment