GRVA/2025/36
UN R90: Proposal for Supplement 12 to the 02 series of amendments

Pursuant to changing the application of the Unique Identifier (UI) under the 1958 Agreement, this proposal deletes the prohibition on use of the UI for replacement brake components under UN R90. Originally, the UI was applied by default to all UN Regulations which therefore required certain regulations to prohibit its use. Pursuant to the adopted proposal WP.29/2025/17, each regulation grants permission to use the UI so the provision prohibiting use under UN R90 is no longer needed.

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Excerpts from session reports
GRVA | Session 22 | 2-6 Jun 2025

77. During the consultations, the experts reviewed the proposal tabled by the expert from the United Kingdom of Great Britain and Northern Ireland to include in the communication form the description of the burnishing procedure used during the type-approval tests. The experts reviewed the proposal tabled by the expert from the Netherlands (Kingdom of) following the recommendation of the IWG on DETA to remove the Unique Identifier.

78. GRVA adopted ECE/TRANS/WP.29/GRVA/2025/35 (supplements to 01 and 02 series) and ECE/TRANS/WP.29/GRVA/2025/36 (supplement to the 02 series) and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote in November 2025.

WP.29 | Session 197 | 10-14 Nov 2025

78. The World Forum considered draft amendments under agenda items 4.10.1 and 4.10.9 recommended their submission to AC.1 for voting, with the following amendments:

  1. In ECE/TRANS/WP.29/2025/139, title, for “Supplement 13” read Supplement 12”,
  2. In ECE/TRANS/WP.29/2025/140, title, for “Supplement 12” read Supplement 13”,
  3. In ECE/TRANS/WP.29/2025/142, Appendix 1 to Annex 1, line before “Manufacturer Name”, introduce an item to read: “UN Regulation No. 156 series of amendments number:” and in Annex 4, for “provisions of Regulation No. [this Regulation]” read “provisions of the 01 series of amendments to Regulation No. 156.”