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Document Title UN R108: Proposal for Supplement 1 to the 01 series of amendments
Reference Number WP.29/2025/73
Date
10 Apr 2025
Summary Proposal to:
  1. Correct the description of a tyre to exclude aspects outside the scope of UN R108
  2. Align the snow tyre definition to UN R109 and 172
  3. Clarify the definition of nominal rim diameter
  4. Clarify the definition of principal grooves by eliminating the circular reference between this definition and the position of tread wear indicators
  5. Introduce a definition for tread depth (used in the requirements for special use and professional off-road tyres)
  6. Amend para. 4.1.5.3.2. to remove the retreaded reference to traction tyre classification because it is not applicable to tyre of class C1
  7. Clarify the calculation of the tyre section width
  8. Replace "XXX" with the UN Regulation No. 172 in the references to the approval of retreaded tyres with regard to their snow performance and/or classification as traction tyre.Correct an omission
  9. Clarify the text of Annex 3: The positioning and order of the markings shall be as follows:....
Rulemaking Area(s) UN R108 Retreaded Tires
Regulatory Impact
01 series of amendments | Supplement 1
Proposal Status Adopted by WP.29
Meeting(s)
Related Documents
GRBP/2025/15 UN R108: Proposal for a Supplement to the 01 series of amendments (superseded)
GRBP-81-11/Rev.1 UN R108: Proposal to supersede document GRBP/2025/15 (superseded)
GRBP/2024/24 UN R108: Proposal for a Supplement to the 01 series of amendments (superseded)
Downloads
UNECE server .pdf format .docx format
GAR server .pdf format .docx format
Excerpts from session reports related to this document
WP.29 | Session 196 | 23-27 Jun