UN R117: Proposal for Supplement 17 to the 02 series of amendments
Document GRBP/2025/12
4 December 2024
Proposal to
- Update standard reference to ASTM F2493-24 and ISO 4000-1:2024
- Align the definitions of tread groove and principal grooves with proposals for UN R30 and R54
- Simplify the wording of the requirements for professional off-road tyres
- Correct the transitional provision in paragraph 12.23. to specify approvals “first issued after 31 August 2028”.
Status: Formal GR review