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UN R142: Proposal for Supplement 2 to the 01 series of amendments
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Reference Number: WP.29/2025/77
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Proposal to: - Add a generic reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3) in footnote 1
- Align title of para. 5 with its contents (paras. 5.1. and 5.2.)
Align the title of para. 6 with corresponding paras. in UN R30, 54, 75, 106 and 117- Clarify that all temporary use spare units can by composed by using tyres of any category of use
- Align the snow tyre definition with UN R30, 54 and 117
- Clarify that tyres for use in severe snow conditions are also applicable to the category of use ‘special use tyres’
- Clarify which service conditions can apply the coefficient given in paragraphs 5.2.4.3.1. and 5.2.4.3.2.
- Add Class C3 tyres to the speed category symbol and load capacity index definitions
- Introduce definitions of free rolling tyre and front axle and revise markings accordingly (ref. documents GRBP-80-03 and GRBP-80-26)
- Clarify reporting the name of the symbols used for tyre for use in severe snow conditions in line with UN R117 and 164.
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Meeting Sessions: 196th WP.29 session (23-27
Jun 2025)
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Document date: 10 Apr 25
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Document status: Superseded
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Relevant to: UN Regulation No. 142 | Tyre Installation
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Adoption Vote
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This proposal (WP.29/2025/77), as amended by para. 72, was adopted by the World Forum. Thirty-six Contracting Parties out of the 58 applying UN R142 were present for the vote by AC.1. Thirty-six voted in favor with zero against and zero abstaining.
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