99. The representative of the United States of America, on behalf of the co-sponsors of the UN GTR, informed AC.3 through the second progress report (WP.29-163-22) on the fifth meeting of the IWG (13-15 May 2014, Washington D.C.). He outlined the main items of discussion on: (i) research and rulemaking activities of Contracting Parties, (ii) UN GTR outline, road map of work and timeline, (iii) development of the UN GTR in one phase and, (iv) establishment of a new Task Force to investigate a possible extension of the UN GTR scope to include buses and trucks. He sought AC.3 endorsement of this extension until December 2015 to complete research and submit a draft UN GTR to GRSP at that time. He finally informed AC.3 on the next meeting of the IWG scheduled on 18-20 November 2014 in the Republic of Korea. AC.3 endorsed the extension of the mandate and requested the secretariat to distribute WP.29-163-22 at its November 2014 session with an official symbol.