Proposal to avoid placing requirements in the Definitions section and to facilitate the text by making use of the definition of “service description” that was introduced by Supplement 24.

Proposal to clarify the use of an additional load/speed combination for a tyre type.

Proposal to remove an inconsistency in the marking provisions and extend production of the “regroovable” symbol or word “REGROOVABLE” beyond moudling (i.e., enable use of other technologies) for tyres that can be regrooved and to consolidate the calculation of reference dimensions with that provided in GTR 16 to allow measuring tyres with size designations listed in Annex 5 on rims whose width code differs from the measuring rim width code listed in the tables of Annex 5.