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.
32. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2017/4 proposing the introduction of new tyre sizes in Annex 5 to Regulation No. 54.
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.