18. The Secretary of the IWG on Regulation No. 55 presented (GRRF-83-06) a consolidated proposal (ECE/TRANS/WP.29/GRRF/2017/3) based on the proposals presented at the previous session of GRRF and addressing the comments received.
19. GRRF adopted the proposal [after correcting an equation in Annex 8, para. 3.4., Clevis Coupling D formulae] and requested the secretariat to submit it as part of the draft Supplement 7 to the 01 series of amendments to Regulation No. 55 (Mechanical coupling) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.
20. The Chair of GRRF recalled the purpose of ECE/TRANS/WP.29/GRRF/2016/32, aimed at imposing a new general constraint for granting component type-approval for mechanical coupling devices dedicated to category M1 vehicles only if the vehicle type is designed to tow trailers. An ad hoc group of experts proposed an alternative wording, in GRRF-83-25-Rev.1.
21. GRRF adopted the proposal as reproduced in Annex III and requested the secretariat to submit it as part of the Supplement 7 to the 01 series of amendments to Regulation No. 55 (Mechanical coupling) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.
22. No progress was reported on the activities of the IWG on the Agricultural Coupling Devices and Components (ACDC).