WP.29/2025/75
UN R117: Proposal for Supplement 17 to the 02 series of amendments

Proposal to

  1. Update standard reference to ASTM F2493-24 and ISO 4000-1:2024
  2. Align the definitions of tread groove and principal grooves with proposals for UN R30 and R54
  3. Simplify the wording of the requirements for professional off-road tyres
  4. Correct the transitional provision in paragraph 12.23. to specify approvals “first issued after 31 August 2028”.
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