46. The expert from GTB introduced GRE-68-10, providing GTB’s initial response to the EU / Japanese initiative presented to WP.29 in June 2012 (see WP.29-157-12). The expert from GTB stated that his association was studying the feasibility of simplifying the current forty-one UN Lighting and Light-Signaling Regulations by grouping them. He also added that his association was also studying the feasibility of establishing GTR’s for Lighting and Signaling Devices and their Installation introducing performance based requirements but noted the difficulties in doing so. He concluded that specific light source regulations might remain largely unchanged because of the need for specific technical provisions. GRE agreed to resume consideration at its next session, noting that GTB volunteered to play an active role in the discussion that would take place on this subject at the November 2013 session of WP.29.