Documentation: ECE/TRANSWP.29/GRSP/46, ECE/TRANS/WP.29/GRPE/59, ECE/TRANS/WP.29/GRRF/67, ECE/TRANS/WP.29/GRB/49 3.1.-3.4.
Documents: ECE/TRANSWP.29/GRSP/46, ECE/TRANS/WP.29/GRPE/59, ECE/TRANS/WP.29/GRRF/67, ECE/TRANS/WP.29/GRB/49.