Informal Document GRRF-82-23

Correction of the paragraph numbering pursuant to the adoption of Supplement 21 and deletion of a redundant note at the end of paragraph 6.1.5.3.3.

32. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2016/35 as amended by GRRF-82-23 proposing editorial corrections to Regulation No. 54. He also introduced ECE/TRANS/WP.29/GRRF/2016/36 proposing amendments to provisions on the minimum markings heights.

33. GRRF agreed with all documents above (see para. 32.) and requested the secretariat to keep the documents on the agenda for the next session.

31. The Chair recalled that GRRF already supported GRRF-82-23 together with ECE/TRANS/WP.29/GRRF/2016/35 as well as ECE/TRANS/WP.29/GRRF/2016/36 and that these documents were kept on the agenda, awaiting a proposal to be considered at this session.

33. GRRF adopted ECE/TRANS/WP.29/GRRF/2016/35 as amended by Annex VII, ECE/TRANS/WP.29/GRRF/2016/36 and ECE/TRANS/WP.29/GRRF/2017/4. GRRF requested the secretariat to submit them as draft Supplement 22 to Regulation No. 54 (Tyres for commercial vehicles and their trailers) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.

Proposal to

• Clarify the minimum heights for markings of tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235
• Clarify the minimum heights for markings of tyres with nominal rim diameter codes < 20 and nominal section width > 235
• Correct the use of uppercase letters to denote dimensions where lowercase letters had been inserted
• Correct the paragraph numbering pursuant to the adoption of Supplement 21
• Delete a redundant note at the end of paragraph 6.1.5.3.3., and
• Add specifications for tyre sizes 33×11.50R20LT, 35×11.50R17LT, 37×13.50R26LT, 36×15.50R20LT and 40×15.50R26LT.