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UN R172: Proposal for Supplement 1
Document GRBP/2025/17
5 December 2024

Proposal to:

  1. Add new reference tyres C3 SRTTs 19.5 and 22.5 siped and related transitional provisions
  2. Simplify the wording of the requirements for
    professional off-road tyres
  3. Make editorial corrections where needed throughout the text.

Submitted by ETRTO
Status: Formal GR review
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Related and Previous Documents
GRBP-81-27
Relates to UN R172 |