19. The expert from Germany introduced ECE/TRANS/WP.29/GRRF/2014/14 on behalf of the Chair of the informal working group on Regulation No. 55. GRRF requested clarifications on the changes to the standard ISO 7641/1-2012 when compared with the current regulated version. GRRF agreed to revisit this item at its next session.

19. The Chair of the informal working group on Regulation No. 55 (Mechanical Couplings) introduced ECE/TRANS/WP.29/GRRF/2013/16 as amended by GRRF-75-21, proposing minor amendments to UN Regulation No. 55. GRRF noted that the reference to an ISO standard had been updated and requested information on the content of this standard. GRRF agreed to resume consideration of this proposal at its next session on the basis of a revised document.

16. The Chair of the IWG on UN Regulation No. 55 introduced ECE/TRANS/WP.29/GRRF/2014/28 (based on ECE/TRANS/WP.29/GRRF/2014/14) and deleting references to the standard ISO 7641/1‑2012 as contained in the original proposal.

18. GRRF adopted ECE/TRANS/WP.29/GRRF/2014/28 and requested the secretariat to submit the proposal to WP.29 and AC.1 for consideration at their March 2015 sessions as draft Supplement 4 to the 01 series of amendments to UN Regulation No. 55.