17. The Chair of the IWG on the Agricultural Coupling Devices and Components reported on the activities of the group (GRRF-86-06) and presented GRRF-86-02, introducing ECE/TRANS/WP.29/GRRF/2018/4 with a draft Regulation on the Agricultural Coupling. GRRF received information on the texts of para. 4.5.

18. GRRF agreed that the stress weld limit should be qualified as absolute. It adopted the document and requested the secretariat make the necessary change and to submit the proposal as new draft UN Regulation on uniform provisions concerning the approval of mechanical coupling components of combinations of agricultural vehicles to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

22. The expert from Germany introduced the proposal for Terms of Reference of IWG on the Agricultural Coupling Devices and Components revised by the IWG (GRRF-82-30). GRRF adopted the proposal, reproduced in Annex II. The expert from Germany submitted GRRF-82-37 to GRRF, providing a status report of the IWGs’ activities.

88. The World Forum considered the proposals for new UN Regulations on Hydrogen and Fuel Cell Vehicles of category L, and on mechanical coupling components of combinations of agricultural vehicles under items 4.12.1 and 4.12.2 and recommended their submission to AC.1 for voting.