10. GRB noted ECE/TRANS/WP.29/GRB/2012/2 and ECE/TRANS/WP.29/GRB/2012/3 tabled by the experts from the Netherlands and OICA. The expert from OICA clarified that ECE/TRANS/WP.29/GRB/2012/2 was aimed at reflecting the latest stage of amendments agreed by GRB including the proposal of 03 series of amendments to UN Regulation No. 51, while ECE/TRANS/WP.29/GRB/2012/3 was proposing further changes to ECE/TRANS/WP.29/GRB/2012/2. GRB noted that the two proposals were not based on the latest stage of amendments agreed by GRB but rather on TRANS/WP.29/GRB/2005/2/Rev.2 superseded by TRANS/WP29/GRB/2005/5 (see TRANS/WP.29/GRB/40, para.7). The expert from OICA explained that the amendments made by GRB in TRANS/WP29/GRB/2005/5 were needed to introduce the monitoring phase into the Regulation and do not reflect the latest state of agreement with respect to the development of the new test method as a series 03 of amendments for UN Regulation 51. GRB agreed to resume discussion on this subject at its September 2012 session on a revised proposal based on the Revision 2 of UN Regulation No. 51 (E/ECE/324/Rev.1/Add.50/Rev.2-E/ECE/TRANS/505/Rev.1/Add.50/Rev.2), voluntarily prepared by the expert from OICA.