GAR | GRRF/2018/5

Proposal for amendments to Regulation No. 54

Document GRRF/2018/5

1 December 2017

86th GRRF session (12-16 Feb 2018)

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,

Submitted by ETRTO

Status: Superseded

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Previous Documents, Discussions, and Outcomes

86th GRRF session (12-16 Feb 2018)

7. (c) | Tyres: Regulation No. 54

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.

Reference Number:	WP.29/2025/2
Meeting Session(s):	195th WP.29 session (3-7 Mar 2025)
Document date:	24 Dec 24
Document status:	Formal WP.29 review
Regarding:	Communications/Connectivity

Reference Number:	EVE-79-05
Meeting Session(s):	79th EVE session (17 Dec)
Document date:	23 Dec 24
Regarding:	GTR No. 21 EV Power Determination \| GTR No. 22 EV Battery Durability \| HD EV Battery Durability

Reference Number:	VIAQ-30-09
Meeting Session(s):	30th VIAQ session (11 Oct)
Document date:	23 Dec 24
Regarding:	MR 3: VIAQ

Reference Number:	WT-64-03
Meeting Session(s):	64th WT session (16 Dec)
Document date:	22 Dec 24
Regarding:	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

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