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UN R108 | Original text | Supplement 4
(2018)
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4
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UN R108 | Original text | Supplement 5
(2021)
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WP.29/2020/73: Proposal to align the provisions for retreaded tyres to be tested and marked with the three-peak-mountain snow-flake (3PMSF) symbol with the related amendment proposals to UN R117. With 39 of the 51 Contracting Parties applying UN R108 present and voting, AC.1 adopted document WP.29/2020/73 by a vote of 39 in favor, 0 opposed, with 0 abstaining.
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5
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00 series of amendments
| Supplement 6
(2022)
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WP.29/2022/6: Proposal to align the provisions for retreaded tyres with the recent development of UN R30, UN R54, and UN R117 and to cover all the tread materials. With 35 of the 51 Contracting Parties applying UN R108 present and voting, AC.1 adopted document WP.29/2022/6 by a vote of 35 in favor, 0 opposed, with 0 abstaining.
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0
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6
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01 series of amendments
(Adopted by WP.29)
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WP.29/2024/63: Proposal to move provisions for snow grip performance of retreaded tyres and their classification as traction tyres from UN R108 into a new UN Regulation on type approval of retreaded tyres of classes C1, C2 and C3 with respect to their snow grip performance and/or classification as traction tyre.
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1
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01 series of amendments
| Supplement 1
(Adopted by WP.29)
WP.29/2025/73: Proposal to:- Correct the description of a tyre to exclude aspects outside the scope of UN R108
- Align the snow tyre definition to UN R109 and 172
- Clarify the definition of nominal rim diameter
- Clarify the definition of principal grooves by eliminating the circular reference between this definition and the position of tread wear indicators
- Introduce a definition for tread depth (used in the requirements for special use and professional off-road tyres)
- 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
- Clarify the calculation of the tyre section width
- 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
- Clarify the text of Annex 3: The positioning and order of the markings shall be as follows:....
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1
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1
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