ETRTO report on the study on the Dimensional Requirements for tyres with radial or run flat structure after having performed the load speed endurance test. ETRTO proposes to amend the UN Regulations No 30, 54 [and 75] by removing the requirements for tyres with radial and run flat structure.

ETRTO proposal for amending tyre marking method by the removal of the use of wording “moulded” in the marking clause as this is only one of the various technical solutions currently available.

Changes to the proposal to align definitions across tyre regulations and align the regulations with technological progress, correct an editorial error, and clarify that the ply rating is not applicable to T-type temporary use tyres.

Proposal to align definitions across tyre regulations and align the regulations with technological progress (see document GRRF-82-21), correct an editorial error, and clarify that the ply rating is not applicable to T-type temporary use tyres.