53. The secretariat reported on the WP.29 considerations, at its June 2019 session, of the signalling requirements for automated/autonomous vehicles (ECE/TRANS/WP.29/1147, paras. 47-50). GRE noted that WP.29 had not been in a position to reach a common position and had referred this issue to WP.1. GRE noted that the Committee for Coordination of Work (WP.29/AC.2) had invited the WP.29 Working Parties (GRs) to identify their priorities with a view to including them into the Programme of Work of WP.29 (ECE/TRANS/WP.29/2019/1/Rev.1). GRE requested IWG SLR to prepare a draft list of GRE priorities.