Proposal for amendments to Regulation No. 54
Download in .pdf format Download in .docx format

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,

Reference Number: GRRF/2018/5
Origin: ETRTO
Date: 1 December 2017
Proposal Status: Superseded
Related Documents:
GRRF-86-23 | UN R54: Proposal for amendments to documents GRRF/2018/5 and GRRF/2018/11
GRRF-86-43 | UN R54: Proposal for a Supplement as adopted by GRRF
GRRF/2018/11 | Proposal for a Supplement to Regulation No. 54
Working Party on Brakes and Running Gear | Session 86 | 12-16 Feb 2018

30. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2018/5 with editorial correction and a number of imperial tyre sizes updated in Annex 5. He also introduced ECE/TRANS/WP.29/GRRF/2018/11 as a consolidated version of UN Regulation No. 54, containing ECE/TRANS/WP.29/GRRF/2018/5. GRRF adopted ECE/TRANS/WP.29/GRRF/2018/11 as amended (GRRF-86-23 and GRRF-86-26) and as reproduced in Addendum 1 (based on GRRF-86-43) to the report. GRRF requested the secretariat to submit this amended proposal as draft Supplement 23 to UN Regulation No. 54 to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.