27. GRSP resumed discussion on ECE/TRANS/WP.29/GRSP/2017/40 aimed at defining the conditions of door openings after the test collision. The expert from OICA introduced GRSP-63-07-Rev.1 to improve feasibility of the test proposed by ECE/TRANS/WP.29/GRSP/2017/40, with a reduced applied force to the door. Finally, GRSP adopted ECE/TRANS/WP.29/GRSP/2017/40 as amended by Annex VIII to the session report. The secretariat was requested to submit the proposal as draft Supplement 7 to the 03 series of amendments to UN Regulation No. 95, for consideration and vote at the November 2018 sessions of WP.29 and AC.1.