40. The Secretary of the Working Party on Road Traffic Safety (WP.1) reported on the progress made by WP.1 during its March 2013 session, particularly on updating the new draft Annex 5 to the Vienna Convention, dealing with vehicle lighting and light-signalling. The first reading of this draft was finalized. WP.1 was expected to finish the second reading within the next two or three sessions. GRE offered its assistance to WP.1, if needed, concluding its reading and deliberations. GRE noted the brief notes (GRE-69-22) on this matter provided by the expert from Germany.