31. The Secretary to the Working Party on Road Traffic Safety (WP.1) informed GRE that WP.1, at its September 2014 session, had continued consideration of the draft proposals for amendments to the Vienna 1968 Convention regarding lighting and light-signalling (ECE/TRANS/WP.1/2011/4/Rev.3). He reported that a new consolidated revision would be prepared for the next session of WP.1 in April 2015, which would inter alia take into account further proposals by IMMA (GRE-72-15). Once finalized and approved by WP.1, the amendment proposals should be officially forwarded to the UN Secretary-General, in his capacity of depository, by one of the Contracting Parties to the 1968 Convention. The WP.1 Secretary invited GRE experts to discuss this issue at the national level, with a view to finding a volunteer country. The GRE Chair stated that he would also raise this issue at the session of the Administrative Committee for the Coordination of Work (AC.2) in November 2014.