17. The expert from Germany introduced GRSP-64-21, to clarify the possibility of installing side facing seats in certain bus categories (M2 and M3 of Classes A and I). GRSP adopted the proposal as reproduced in Annex III to the session report and requested the secretariat to submit it as Supplement 1 to the 09 series of amendments to UN Regulation No. 17, for consideration and vote at the June 2019 sessions of WP.29 and AC.1.