6. See also, para. 20, concerning the updating of the requirements on the noise test track from ISO 10844:1994 to ISO 10844:2011, GRB agreed to defer discussion on ECE/TRANS/WP.29/GRB/2012/16 and ECE/TRANS/WP.29/GRB/2012/17 to its February 2013 session.

7. The expert from OICA introduced ECE/TRANS/WP.29/GRB/2012/8, consolidating a proposal of 03 series of amendments to UN Regulation No. 51. The proposal received comments from the expert of ETRTO (GRB-56-16) proposing to change the vehicle test conditions of Annex 10 of UN Regulation No. 51. GRB noted that the proposed changes (GRB-56-16) have already been adopted as Supplement 8 to the 02 series of amendments and agreed to amend ECE/TRANS/WP.29/GRB/2012/8 accordingly. Moreover, the expert from the Netherlands introduced GRB-56-12 proposing a new layout for the communication form. GRB agreed to resume consideration at its February 2013 session on ECE/TRANS/WP.29/GRB/2012/8 on the basis of a revised document prepared by the expert from the Netherlands in cooperation with the experts from CLEPA and OICA. GRB recommended experts to provide detailed comments.

8. GRB considered and adopted GRB-56-03 as reproduced in Annex II to this report, amending the figure for measuring positions of vehicles in motion. The secretariat was requested to submit the proposal to WP.29 and AC.1 for consideration at their March 2013 session as Supplement 9 to the 02 series of amendments to UN Regulation No. 51.

9. Finally GRB considered GRB-56-06, tabled by the expert from China, introducing amendments to the test method. He introduced GRB-56-09 for information, showing the difference among the test methods in UN Regulation No. 51, ISO 362 and the Chinese standard (GBI1495-2002) and GRB-56-22 as a justification to the proposed amendments to the test. The expert from OICA suggested that such relevant outcome of research should be brought together with those from other Contracting Parties to the 1958 Agreement (i.e. European Union) to keep UN Regulation No. 51 relevant worldwide. GRB agreed to resume discussion at the February 2013 session on a possible official proposal (based on GRB-56-06) tabled by the expert from China in cooperation with the expert from ISO.

7. The expert from OICA, secretary of the group of interested expert on vehicle noise, introduced GRB-58-04 (superseding ECE/TRANS/WP.29/GRB/2012/8, ECE/TRANS/WP.29/GRB/2012/16 and GRB-56-12) as a result of discussions in the last meeting of his group held in Brussels on 4 July 2013. The expert from EC, Chair, of the same group clarified that GRB-58-04 was an attempt to merge the provisions of the proposal of the Parliament and the Council of the EU1 with the current proposal of 03 series of amendments to UN Regulation No. 51 and including additional aspects concerning the Chinese and Japanese markets, which were beyond the scope of the European Union legislation. He added that the outcome of discussions that would follow within GRB would be transmitted to the EU legislators with the aim of harmonizing the proposal with the draft 03 series of amendments. The expert from Japan proposed GRB-58-15 proposing the removal from GRB-58-04 of specifications on audible vehicle alerting system (AVAS) which is still in the process of development in the framework of activities of the UN GTR on Quiet Road Transport Vehicles (QRTV). The expert from Japan, Vice-Chair of the QRTV informal working group (IWG), also on behalf of the Chair of the IWG, reported similar concerns and request. The experts from China, the Republic of Korea and OICA supported these remarks. GRB endorsed the proposal made by the expert from Japan by suspending the discussion on AVAS provisions. GRB agreed to incorporate the results of discussion, including those of agenda item 3(b) (see paras. 10 and 11) into GRB-58-17-Rev.1., superseding GRB-58-04. It was noted that provisions still pending or suspended, were placed in square brackets in this document. The Chair of GRB clarified that GRB-58-17-Rev.1 would remain, on an informal basis, as a platform of discussion between the experts from GRB and EU in the group of interested experts on vehicle noise. GRB agreed to resume discussion on this subject on the basis of the outcome of next meetings of the group of interested experts scheduled for the first week of November 2013 and for the second week of January 2014 (both in Brussels).