29. The experts from IMMA and OICA introduced GRB-57-12 and GRB-57-18, listing the current acronyms and abbreviation in UN Regulations under the responsibilities of GRB. GRB agreed to resume discussion at its September 2013 session on the basis of informal documents provided by the expert from CLEPA concerning UN Regulations Nos. 59 and 28, and by the expert from EC concerning QRTV.

26. GRB agreed to resume discussion at its January 2014 session on the basis of GRB-57-12 and GRB-57-18 and of informal documents provided by the expert from CLEPA concerning UN Regulations Nos. 59 and 28 and by the expert from EC concerning QRTV.

27. GRB resumed consideration of definitions and acronyms in UN Regulations and UN Global Technical Regulations under the responsibility of GRB on the basis of GRB-57-12 and GRB-57-18. The Chair of GRB stressed the importance of preparing a full and consistent list of acronyms and abbreviations with a view to avoiding any ambiguity in this area. It was agreed that this list covering both the 1958 and 1998 Agreements would then be submitted to WP.29 for approval and would be updated from time to time. GRB reiterated its invitation to all experts to provide their contributions, if any, so that the final document could be approved at the September 2014 session of GRB.

21. GRB reviewed GRB-57-12 and GRB-57-18 containing definitions and acronyms in Regulations under the responsibility of GRB and requested OICA and IMMA to update these documents based on the 03 series of amendments to UN Regulation No. 51 and the 02 series of amendments to UN Regulation No. 59 adopted at the present session (see paras. 5 and 9 above), so that the final versions could be approved at the January 2015 session of GRB.

27. GRB noted that, in line with the WP.29 decision, the secretariat was preparing a concept of a central register in which acronyms used by WP.29 as well as definitions used in UN Regulations and UN GTRs would be listed. In this context, GRB reiterated its request to OICA and IMMA to update documents GRB-57-12 and GRB-57-18 containing definitions and acronyms in Regulations under the responsibility of GRB.