172. The representative of the Russian Federation, on behalf of the Chair of IWG on Tyre GTR, recalled the IWG activities on Amendment 2 to UN GTR No. 16 (Tyres), and reported on the results of the recent meetings held in Geneva (21-22 January 2019) and Brussels (4-5 March 2019). He thanked the experts from Canada, China, Japan, the United States of America and the tyre industry for participating. He encouraged other contracting parties to take part in the activities of IWG on Tyre GTR, in particular, at its next session in Munich (8-9 May 2019). He informed AC.3 that IWG on Tyre GTR continued work on the text of Amendment 2, its technical justification and technical report, which would be adapted both to the type approval and self-certification systems, with the aim to present a complete package to the September 2019 session of GRBP. He further recalled that AC.3, at its previous session, supported informal document WP.29-176-15 with an addendum to the authorization to develop Amendment No. 2 to UN GTR No. 16 to reflect the transfer of tyre-related activities from the former GRRF to GRBP, and pointed out that this addendum had officially been submitted to AC.3 for adoption as ECE/TRANS/WP.29/2019/32. AC.3 adopted this document.