It is based on the text of a document distributed without a symbol (informal document No. 13) during the fiftieth session of GRRF (TRANS/WP.29/GRRF/50, para.
Il est fondé sur un document sans cote (document informel n° 13), distribué pendant la cinquantième session du GRRF (TRANS/WP.29/GRRF/50, par. 13).