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UN R117: Proposal to amend document GRBP/2021/12
Document WT-26-03
8 September 2021
  1. In paragraph 5.3.1.2. the wording has been adjusted to the definitions as amended with GRBP/2021/12 proposal to identify adhesion on wet surfaces of tyre in new state.
  2. Paragraph renumbered and reworded in line with the text proposed in paragraph 8.3.1. of document ECE/TRANS/WP.29/2021/17.
  3. Paragraph 12.2. has been reworded according to the intentions of paragraph 41. of the General Guidelines for United Nations regulatory procedures and transitional provisions in UN Regulations to avoid TAA’s to interpret a mere change in markings as a change introduced by the new SoA.
  4. Paragraph 12.6.1. is in line with paragraph V.9bis. of the General Guidelines for United Nations regulatory procedures and transitional provisions in UN Regulations. Proposed paragraph 12.4.1., is introducing date limitations and precise reference to a specific series of amendments and in such does not conform to V.9 bis transitional provisions. Consequently, it should then be deleted from the proposal.
  5. In Annex 1, paragraphs 8.2. and 8.3., the reference to non-existent items was removed.
  6. In Annex 2 – Appendix 1, Example 1, the wording has been aligned to the other examples provided in Annex 2.
  7. In Annex 9, paragraphs 2.1.5 to 2.2.1.2.4.1. have been reworded to clarify the preparation of class C1 tyres in worn state.
  8. In Annex 9 – Appendix 1, the example of worn tyre preparation report example has been updated to remove unnecessary and ambiguous data to be reported.
  9. In Annex 9, Appendix 2, Example 2, the report example has been updated in line with the proposal of Annex 5, Appendix, Example 2 of document ECE/TRANS/WP.29/GRBP/2021/17.
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Previous Documents, Discussions, and Outcomes
7. (e) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

23. The expert from France, in her capacity of Co-Chair IWG WGWT, presented draft amendments that introduced a procedure and thresholds on wet grip performance for C1 tyres in worn state (ECE/TRANS/WP.29/GRBP/2021/12, as updated by GRBP-74-33-Rev.1). GRBP adopted GRBP-74-33-Rev.1 and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as a new draft 03 series of amendments to UN Regulation No. 117. GRBP noted that, with the aim to complete the proposal and remove few square brackets, an informal document would be prepared for the next session. If adopted, this document would also be submitted to the March 2022 sessions of WP.29 and AC.1. GRBP noted that, to avoid possible uncertainty, the adopted draft Supplement 14 to the 02 series of amendments (see para. 21 above) would be explicitly included in the future WP.29 document with the new draft 03 series of amendments to UN Regulation No. 117.

Related and Previous Documents
GRBP/2021/12
Relates to UN R117 |