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Document Title UN R142: Proposal for Supplement 2 to the 01 series of amendments
Reference Number WP.29/2025/77
Date
10 Apr 2025
Summary Proposal to:
  1. Add a generic reference to the Consolidated Resolution on the Construction of Vehicles (R.E.3) in footnote 1
  2. Align title of para. 5 with its contents (paras. 5.1. and 5.2.)
    3. Align the title of para. 6 with corresponding paras. in UN R30, 54, 75, 106 and 117Clarify that all temporary use spare units can by composed by using tyres of any category of use
  3. Align the snow tyre definition with UN R30, 54 and 117
  4. Clarify that tyres for use in severe snow conditions are also applicable to the category of use ‘special use tyres’
  5. Clarify which service conditions can apply the coefficient given in paragraphs 5.2.4.3.1. and 5.2.4.3.2.
  6. Add Class C3 tyres to the speed category symbol and load capacity index definitions
  7. Introduce definitions of free rolling tyre and front axle and revise markings accordingly (ref. documents GRBP-80-03 and GRBP-80-26)
  8. Clarify reporting the name of the symbols used for tyre for use in severe snow conditions in line with UN R117 and 164.
Rulemaking Area(s) UN R142 Tyre Installation
Regulatory Impact
01 series of amendments | Supplement 2
Proposal Status Adopted by WP.29
Meeting(s)
Related Documents
GRBP/2025/14 UN R142: Proposal for a Supplement
GRBP-81-10/Rev.1 UN R142: Proposal to supersede document GRBP/2025/14
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
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