38. The GRE chair informed WP.29 about the ongoing activities of GRE on simplifying lighting and light-signalling Regulations, bearing in mind the guidance provided by WP.29 and the United Nations Office for Legal Affairs (OLA). The representative of IEC presented WP.29-167-19 recalling the approach proposed for the simplification of light sources regulations and the guidance provided by OLA. He invited WP.29 to reconfirm its earlier mandate (ECE/TRANS/WP.29/1112, para. 42) to prepare a repository (resolution) on light sources and asked whether this repository could be in English only. The World Forum reconfirmed the approach for simplification of light source regulations but insisted on the need for the repository to be available in the three official languages English, French and Russian.