22. GRBP took note of the activities of the Task Force on Tyre Pressure Monitoring System and on Tyre Installation (TF TPMSTI) (GRBP-72-21) and addressed its proposal for a new series of amendments (ECE/TRANS/WP.29/GRBP/2020/20, GRBP-72-19-Rev.2, GRBP-72-20). GRBP adopted the proposal, as amended by Annex IX of the session report, and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their March 2021 sessions as a new 01 series of amendments to UN Regulation No. 141. During the adoption, the expert of EC recalled his intention to seek WP.29 guidance on the transitional provision about granting type approvals according to preceding series of amendments (see para. 4 above).