Proposal to introduce formulae for tyre sizes in Annex 5, Table B, add sizes in Annex 5, Part II, Tables C and E for old sizes that do not follow the guidelines/formulae applicable for high flotation tyres, clarify tyre width tolerances, correct paragraph numbering and references, align the text editorially with UN R30 and to make other editorial improvements,

Consolidated version of UN R54 incorporating the proposed amendments in document GRRF/2018/5.

Correction of a cross-reference error in the original documents GRRF/2018/5 and GRRF/2018/11.

Proposal to amend footnotes in Annex 5, Part II, Table B in order to clarify categories of use.

Proposal as approved by the GRRF to introduce formulae for tyre sizes in Annex 5, Table B, add sizes in Annex 5, Part II, Tables C and E for old sizes that do not follow the guidelines/formulae applicable for high flotation tyres, amends footnotes in Annex 5, Part II, Table B in order to clarify categories of use, clarify tyre width tolerances, correct paragraph numbering and references, align the text editorially with UN R30 and to make other editorial improvements,

Addendum 1 to the Report of the GRRF on its 86th session