UN R155 (2021) 4 Mar 2021 2021-03-15 15:13:09 UTC Original text Based upon the adopted proposal: WP.29/2020/79

Proposal for a new UN Regulation on uniform provisions concerning the approval of vehicles with regards to cyber security and cyber security management system.

UN R155 | Amendment 1 (2022) 25 Nov 2022 2025-09-03 08:32:26 UTC 1 Original text | Supplement 1 Based upon the adopted proposal: WP.29/2022/54

Proposal to clarify the transition clauses specified in paragraph 7.3.1. and 7.3.4. with regard to the extension of type approvals first issue before 1 July 2024 and applied for such extension after that date.

UN R155 | Amendment 2 (2024) 4 Mar 2024 2025-09-03 08:33:25 UTC 2 Original text | Supplement 2 Based upon the adopted proposal: WP.29/2023/70

Proposal to improve explanations and examples for spoofing threats.

UN R155 | Amendment 3 (2025) 12 Mar 2025 2025-09-03 08:35:07 UTC 3 Original text | Supplement 3 Based upon the adopted proposal: WP.29/2024/55

Proposal to extend the scope of UN R155 to include all vehicles of Category L.

Earlier texts may be available through the UN Official Document System.