GAR | GRVA/2026/29

GRVA/2026/29

UN R155: Proposal for a Supplement

Source(s)

TFCS

Date

6 Jul 2026

Status

Formal GR review

Subject

UN R155 Cyber Security

Impact

Original text | Supplement 5

Meeting(s)

GRVA | Session 26 | 14-18 Sep

Agenda item 5. (a) Cyber security, software updates and over-the-air issues

Proposal to insert new Part C providing guidance for the application of UN R155 to transformed vehicles. Part C addresses identification of cyber-relevant transformations, impact on original vehicle architecture, connection risks, and impact on cyber security management systems. It specifies that transformations require new approval unless the manufacturer provides clear evidence that the original approval remains valid, and outlines critical factors and examples of cyber-relevant actions. It details documentary evidence expected from manufacturers regarding functional descriptions, connections with original vehicle types, added components and functions, and arguments demonstrating negligible intrinsic risk.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRVA | Session 26 | 14-18 Sep

36. The representative of the United Kingdom of Great Britain and Northern Ireland introduced the status report of the IWG on Cyber Security and Software Updates (CS/OTA) (GRVA-26-18), outlining the group’s current activities: (a) the review of proposals to amend UN Regulation No. 155 and its interpretation document with respect to multi-stage vehicles; (b) the review of proposals concerning approval-authority arrangements; © the consideration of proposals for separate technical services and component approvals under UN Regulation No. 155; and (d) discussions on the integration of software identification and software-update provisions across several UN Regulations, as outlined in Consolidated Resolution R.E.3.

37. He introduced document ECE/TRANS/WP.29/GRVA/2026/27, which proposes amendments to all relevant UN Regulations under the purview of GRVA to introduce provisions on software identification and software updates, as well as informal document GRVA-26-11 containing amendments to the official document. GRVA requested the secretariat to distribute GRVA-26-11 with an official symbol at the twenty-seventh GRVA session.

38. GRVA reviewed document ECE/TRANS/WP.29/GRVA/2026/28, intended to clarify the scope of UN Regulation No. 155, and adopted it. GRVA requested the secretariat to submit it as draft Supplement 4 to UN Regulation No. 155 to WP.29 and AC.1 for consideration and vote at their March 2027 sessions.

39. GRVA reviewed the corresponding amendment to the interpretation document of UN Regulation No. 155 proposed in document ECE/TRANS/WP.29/GRVA/2026/29, as amended by GRVA-26-12. Following discussion, GRVA adopted GRVA-26-36/Rev.1 as an amendment to Part C of the interpretation document of UN Regulation No. 155 and requested the secretariat to submit it to WP.29 for adoption at its March 2027 session.