GRBP/2026/10
UN R172: Proposal for a 01 series of amendments

Proposal to:

  1. Clarify that the “supplier of the tread used for the retreading process” is responsible for conformity of production of the
    supplied tread,
  2. Align the classification “traction tyre” with UN R117
  3. Provide transitional provisions to manage the switch from the requirements given in paragraph 6.2.1. to the ones given in the paragraph 6.2.2.,
  4. Correct the omission of provisions for “professional off-road tyre” and their alignment with UN R30,/li>
  5. Correct a reference to “Appendix 1” of the 1958 Agreement to “Schedule 1”, and
  6. Manage the transition to the new standard reference test tyres (SRTTs)
    19.5 and 22.5 siped
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