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STD-UNECE-2021-002
UN Regulation No. 156 — Software Update and Software Update Management System
UN-R156 软件升级与软件升级管理体系
JURISDICTION
International / UN
ORGANIZATION
UNECE WP.29
TYPE
Regulation
STATUS
In Force
PUBLICATION DATE
2021-01-22
EFFECTIVE DATE
2022-07-01
AUTOMATION LEVEL
L2, L3, L4
TOPICS
OTA UpdatesCybersecurityType Approval
SUMMARY
Mandates a certified Software Update Management System (SUMS) for vehicle type approval, covering OTA updates. Requires OEMs to document update impacts on homologated functions, ensure update integrity, and provide user notification.
IMPACT / ANALYSIS
Combined with UN-R155, this defines how OEMs can legally push OTA updates. Pony.ai's Beijing 2025-05 fire incident (rare ADAS vehicle fire) would fall under incident reporting requirements tied to this framework.
RELATED STANDARDS
UN-R155ISO 24089
Contributor: ROAM Core TeamUpdated: 2026-04-16