Proposal to incorporate additional tire sizes within the regulation for commercial vehicle tires sold in countries requiring type approval according to UN Regulation No. 54.
30. The expert from ETRTO proposed inserting new tyre sizes in Annex 5 of UN Regulation No. 54 (ECE/TRANS/WP.29/GRRF/2013/19). GRRF adopted this proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as draft Supplement 19 to UN Regulation No. 54.