21. The expert from Japan presented GRSG-104-47 justifying the amendments proposed in ECE/TRANS/WP.29/GRSG/2013/4 to prevent vehicles from fire risks under certain conditions in the event of a rear collision. GRSG noted a number of comments. GRSG also noted a general concern to avoid options or alternatives in the text of UN Regulations.

22. Following the discussion, GRSG agreed to resume consideration of this proposal at its next session and invited the expert from Japan to review the proposed text in view of the concern raised and to provide, if possible, further elements on costs and benefits and additional statistical data as evidence for such amendments to UN Regulation No. 34. GRSG agreed to keep ECE/TRANS/WP.29/GRSG/2013/4 on the agenda as a reference document.