UN Regulation No. 117
Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance
← Revision 6 | Amendment 2
Revision 5
Revision 5 | Amendment 1 →
20 Mar 2025
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UN R117: Proposal for Supplement 13 to the 02 series of amendments
Proposal to
  1. Improve the reproducibility of the test method (in alignment with ISO 23671)
  2. Include maximum load and pressure information per ASTM F2493-19
  3. Update the test report templates accordingly
  4. Remove the limitation for “moulded” markings
  5. Transition from SRTT14 to SRTT16
  6. Align track friction requirements for track characterization per the transition
  7. Clarify vehicle selection provisions
  8. Introduce transitional provisions
Authentic and legally binding text WP.29/2021/8
UN R117: Proposal to amend document WP.29/2021/8

Proposal to replace “markings” by “approval mark” in paragraph 4.4.1. to clearly specify the intended application of the provision (i.e., to the approval mark, not to all markings).

Authentic and legally binding text WP.29-183-06