GRBP/2026/17
UN R117: Proposal for a Supplement 5 to the 04 series of amendments
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Proposal to amend para. 2.18. to change the reference year from 24 to 26 for standard F2493, add new para. 2.21. defining “road legal race tyre,” add new para. 4.2.8. requiring the inscription “RLR” for road legal race tyres, insert new footnote 12 on marking height, renumber current footnote 12 to footnote 13 and amend its text, amend para. 5.4.1. to reference footnote 13, add new para. 6.9. establishing requirements for road legal race tyre classification, add new item 4.3. to Annex 1, amend para. 6.7. to change “classified” to “categorized,” amend Annex 3 para. 4.2.2. tables to change K1 unit from C to dB(A), amend Annex 3 Appendix 1 Part 2 item 3.1. to update ISO10844 reference from 2014 to 2021, and amend Annex 7 Appendix 3 Item 5 table to enable reporting of SRTT weighted average for each candidate.
Standard Reference Test Tyre