81. The Chair of IWG on IWVTA informed WP.29 that the document ECE/TRANS/WP.29/2017/131/Rev.1, Revision 3 of the 1958 Agreement – questions and answers, based on a proposal submitted by the Russian Federation (see ECE/TRANS/WP.29/145, paras. 79 and 80), and issued as ECE/TRANS/WP.29/2017/131/Add.2, had been considered by IWG on IWVTA. WP.29 considered the IWG suggestions (WP.29-178-06) and endorsed ECE/TRANS/WP.29/2017/131/Add.2 as amended by WP.29-178-06.