51. GRSP noted GRSP-55-27, or the possible insertion of new categories of vehicles (e.g. agricultural trailers and towed machinery) into the Consolidated Resolution on the Construction of Vehicles (R.E.3). It was noted that the proposal had been designed by the Working Party on Lighting and Light-Signalling (GRE) in updating UN Regulation No. 86 (Installation of lighting and light-signalling devices for agricultural tractors) and that GRE agreed to circulate the proposal to all Working Parties for comments. GRSP invited its experts to provide comments on the proposal to the secretariat, before the October 2014 session of GRE.