GRSP-79-28
Hydrogen Regulations task force status report to GRSP

Report on the status of deliverables to 79th GRSP session. Expected deliverables include working documents for transposition of optional part of GTR13 on liquified hydrogen (December 2025), updating ISO 17268-1:2025 reference for receptacle geometry (December 2025), and incorporating periodic inspection requirements into UN Regulation No. 134 (May 2026, WP.29-2026-56e). Additional deliverables include recommendations for IWG GTR 13 Phase 3 and way forward for material compatibility requirements (July 2026). TF-H2 also recommended clarifications to UN-R 134/03 regarding ‘appropriate adaptor’ definition and changes to related paragraphs, with informal document due December 2026.

UNECE server