UN R172: Proposal for Supplement 1
Document GRBP/2025/17
5 December 2024
Proposal to:
- Add new reference tyres C3 SRTTs 19.5 and 22.5 siped and related transitional provisions
- Simplify the wording of the requirements for
professional off-road tyres - Make editorial corrections where needed throughout the text.
Status: Formal GR review