Proposal for the Worn Tyres working group to complete the proposal for Supplement 1 to the 03 series of amendments to UN R117 (adopted by GRBP in September 2022 and submitted to the March 2023 WP.29 session) by adding a detailed reference (F3611-22) for the molded standard reference test tyre (SRTT16).

Proposal from the Worn Tyres working group to complete the proposal for the 04 series of amendments to UN R117 (adopted by GRBP in September 2022 and submitted to the March 2023 WP.29 session) by adding a detailed reference (F3611-22) for the molded standard reference test tyre (SRTT16).

The existing transitional provisions do not address tyres produced in accordance with the applicable requirements and placed in distribution channels before 7 July 2026. Therefore, a new transitional provision is proposed based on the clause R.4 of part C – “Transitional provisions for replacement parts for vehicles in use” of the General Guidelines for United Nations Regulatory Procedures and Transitional Provisions in UN Regulations. It will clarify that new tyres manufactured before 7 July 2026 and approved according to the 02 or 03 series of amendment will be allowed to be sold and fitted on vehicles in use for additional period not exceeding 30 months from 7 July 2026.

Proposal to delete obsolete footnotes concerning worn tyre wet grip and approvals under UN R117 coincident with approvals under UN R54. The 04 series of amendments to UN R117 introduces the requirements on adhesion of tyres in worn state on wet surfaces for tyres within the scope of UN R54.