The Working Party on Noise and Tyres held its eighty-fourth session from 2-4 September 2026 in Geneva. GRBP adopted a draft new Supplement to the 02 series and a draft new Supplement to the 04 series of amendments to UN R117, and agreed to submit these to WP.29 and AC.1 for consideration and vote at their March 2027 sessions. GRBP adopted the content of a proposal for a new supplement to UN R64 and agreed to postpone submission to WP.29 until further notice. GRBP adopted revised Terms of Reference for the IWG on Real Driving-Additional Sound Emission Provisions with extended mandate until February 2028.

Existing transitional provisions do not address the issue of retreaded tyres produced in accordance with the applicable requirements before 1 September 2028. Thus, a significant quantity of retreaded tyres will stay stocked within the different stages of the distribution channels.

Session report of WP.29 (World Forum for Harmonization of Vehicle Regulations), its Administrative Committee of the 1958 Agreement (AC.1), Executive Committee of the 1998 Agreement (AC.3), and Administrative Committee of the 1997 Agreement (AC.4) held 23-26 June 2026 in Geneva. AC.1 voted on 92 amendments to existing UN Regulations, one corrigendum to UN Regulation No. 79, and three new UN Regulations (Nos. 184-186) on liquid hydrogen vehicle safety, automated driving systems, and tyre abrasion performance. AC.3 established UN GTR on automated driving systems and adopted corrigendum to UN GTR No. 9 and Amendment 2 to UN GTR No. 13. WP.29 extended mandates of several informal working groups and noted accession of Mongolia and Armenia to the 1958 and 1997 Agreements respectively.

Proposal to modify paragraph 2.4. to define “Material supplier,” delete paragraph 2.59., and renumber paragraphs 2.60., 2.61. and 2.61.1. as 2.59., 2.60. and 2.60.1., amend paragraphs 3.2.8., 3.6., and 4.1.5.3.2. regarding M+S markings and tyre classifications, and delete paragraphs 4.1.5.3.2.1., 4.1.5.3.2.2. and 4.1.5.3.2.