STD-UNECE-2020-001

UN Regulation No. 156 — Software Update and Software Update Management System

UN-R156 软件更新与软件更新管理系统

JURISDICTION

International / UN

ORGANIZATION

UNECE WP.29

TYPE

Regulation

STATUS

In Force

PUBLICATION DATE

2020-06-25

EFFECTIVE DATE

2022-07-01

AUTOMATION LEVEL

L2, L3, L4

OFFICIAL URL

https://unece.org/transport/documents/2021/03/standards/un-regulation-no-156-software-update-and-software-update

TOPICS

OTA UpdatesCybersecurityType Approval

SUMMARY

Establishes SUMS (Software Update Management System) requirements for type approval. OEMs must maintain integrity and authenticity of updates throughout vehicle lifecycle and keep update records for authorities.

IMPACT / ANALYSIS

Paired with UN-R155. Mandatory in EU since July 2022 (new types) and July 2024 (all new vehicles). Core to enabling OTA-heavy business models.

RELATED STANDARDS

UN-R155ISO/SAE 21434ISO 24089

Updated: 2026-04-16