The task force completed working documents for transposition of the optional part of GTR 13 on liquefied hydrogen (GRSP/2025/41, GRSP-78-15/Rev.1, GRSP-78-16/Rev.2), updating ISO 17268-1:2025 references for receptacle geometry, and incorporating ISO 19887-1:2024 and periodic inspection requirements into UN Regulation No. 134 (WP.29/2026/56, WP.29/2026/136, WP.29/2026/57). The task force recommended deferring discussions on supply line standards to IWG GTR 13 Phase 3 and provided recommendations for hydrogen storage and fuel system requirements.