Proposal for amendments to Regulation No. 54
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Proposal to

  1. correct the references to paragraph 3.17 in paragraph 3.1.12. to refer to 3.20
  2. update a cross-reference in paragraph 3.4 to read “3.1.2.” pursuant to the earlier division of paragraph 3.1 into paragraphs 3.1.1. and 3.1.2. (consistent with UN R30)
  3. delete the superfluous reference to paragraph 2.19 in paragraph. 4.1.1. (consistent with UN R30)
  4. delete the word “existing” from paras. and (consistent with all the other tyre UN Regulations)
  5. amend paragraph to take into account the requirements for size designations in Annex 5
  6. add a footnote to Annex 5, Part II, Table B to introduce the appropriate formulae in the Regulation (instead of Annex 5)
  7. add a size in Annex 5, Part II, Table C for an old size that does not follow the guidelines/formulae applicable for high flotation tyres.

Reference Number: GRRF/2017/18
Origin: ETRTO
Date: 5 July 2017
Proposal Status: Superseded
Related Documents:
GRRF-84-16 | Proposal for amendments to GRRF/2017/18 (UN R54)
GRRF-84-34 | Addendum to document GRRF/2017/18
Working Party on Brakes and Running Gear | Session 84 | 19-22 Sep 2017

28. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2017/18 as amended by GRRF-84-16 with editorial correction and a number of imperial tyre sizes updated in Annex 5.

29. GRRF agreed to adopt the proposed amendment to paragraph 3.4. (based on GRRF‑84-34) as reproduced below:

Paragraph 3.4., amend to read:

"3.4.The markings referred to in paragraph 3.1. and the approval mark prescribed in paragraph 5.4. of this Regulation shall be moulded on to or into the tyres. They shall be clearly legible and shall, except for the marking referred to in paragraphs 3.1.1., 3.1.2. and 3.1.13. above, be located on at least one lower sidewall."
30. The expert from ETRTO volunteered to prepare a revised proposal for the February 2018 session of GRRF to address the comments received on some provisions proposed in ECE/TRANS/WP.29/GRRF/2017/18.