GRVA-23-36/Rev.1
UN R131 and R152: Proposals for amendments

Proposals to resolve issues with accepting the approval of M2, M3 and N2 vehicles to Regulation No. 152.

UNECE server
Excerpts from session reports
GRVA | Session 23 | 22-25 Sep 2025

51. The representative of France presented an amendment proposal to UN Regulation No. 152 aimed at clarifying the application of the footnote in the scope of the regulation, treating UN Regulations Nos. 131 and 152 on equal footing for heavy vehicles and so that Contracting Parties to UN Regulation No. 131 should recognize approvals pursuant to UN Regulation No. 152. The representative of AAPC recalled similar discussion in the context of UN Regulation No. 160 (EDR). He invited GRVA to consider precedents in other regulations. The representative of OICA supported the proposal in general and offered to provide some modifications. On the same topic, the representative of the United Kingdom of Great Britain and Northern Ireland proposed an alternative approach, noting the different focus for the type of scenarios to be address under the two regulations. He commented that the choice to apply the proposal from his Country or from France would depend on government views on which type of scenarios were most relevant for the vehicle category at stake. He confirmed that his approach was aligned with the approach selected for UN Regulations Nos. 160 and 169. The representative of OICA explained that GRVA-23-36/Rev.1 would require re-approving existing vehicles.
52. GRVA requested the secretariat to distribute GRVA-23-36/Rev.1 with an official symbol at the January 2026 GRVA session and to keep GRVA-23-08 on the agenda that session.

GRVA | Session 24 | 19-23 Jan

71. The representative of the United Kingdom of Great Britain and Northern Ireland introduced ECE/TRANS/WP.29/GRVA/2026/9 addressing a question raised by Australia on the overlap between UN Regulations Nos. 131 and 152 and the recognition of approvals by applying the provisions in the footnote in the scope of the regulation, treating UN Regulations Nos. 131 and 152 on an equal footing for heavy vehicles.

72. GRVA adopted ECE/TRANS/WP.29/GRVA/2026/9 and requested the secretariat to submit it as supplement to the 02 series of amendments to UN Regulation No. 152 and to UN Regulation No. 131 to WP.29 and AC.1 for consideration and vote at their June 2026 sessions.