36. The expert from GTB informed GRE about the work progress made by its organization on this matter, combining the approach from CLEPA (ECE/TRANS/WP.29/GRE/2012/25) and GTB (ECE/TRANS/WP.29/GRE/2011/46). GRE agreed to reconsider this agenda item at its October 2013 session on the basis of a formal document that the expert from Germany volunteered to prepare.