78. The World Forum considered the draft amendments under agenda items 4.6.1, 4.6.3, 4.6.4 and 4.6.6 to 4.6.8. and recommended their submission to AC.1 for voting.

79. The World Forum recalled that it had accepted the request of the GRBP Chair to postpone to the June 2022 session consideration of the draft amendments under agenda items 4.6.2 and 4.6.9 (see para 60. above).

80. The representative of ETRTO proposed a modification to the draft amendments in ECE/TRANS/WP.29/2022/7 under agenda item 4.6.5 (WP.29-186-07). The representatives of the European Commission and the United Kingdom of Great Britain and Northern Ireland commented on the ETRTO proposal. Based on the received comments, the World Forum requested ETRTO to revise WP.29-186-07 and decided to postpone consideration of the draft amendments in ECE/TRANS/WP.29/2022/7 to the June 2022 session. In the interim, the World Forum requested the secretariat to arrange a written consultation of GRBP experts on the ETRTO proposal.

18. The experts from France, the Netherlands and BIPAVER proposed to align the provisions for retreaded tyres with the previously adopted proposals for UN Regulations Nos. 54 and 117 and to cover all tread materials (ECE/TRANS/WP.29/GRBP/2021/16). The expert from ETRTO commented on the proposal and suggested further modifications (GRBP-74-29-Rev.1 and GRBP-74-30-Rev.2). GRBP adopted the proposal with the amendments in Annex IV and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 11 to UN Regulation No. 109.

19. The expert from France tabled a proposal with the aim to allow, under certain conditions of traceability, upgrading of the service description of a used casing (ECE/TRANS/WP.29/GRBP/2021/18). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 11 to UN Regulation No. 109.