Documentation: ECE/TRANS/WP.30/2008/7; ECE/TRANS/WP.30/2007/12/Rev.1; ECE/TRANS/WP.30/2007/12; WP.30 Informal document No. 2 (2008)
Documents: ECE/TRANS/WP.30/2008/7; ECE/TRANS/WP.30/2007/12/Rev.1, ECE/TRANS/WP.30/2007/12; document informel du WP.30 no 2 (2008).