28. The Chair of GRE informed WP.29 about the outcome of the seventy-fifth session of GRE (for details, see the session report ECE/TRANS/WP.29/GRE/75), including a new phased approach proposed by GRE for the simplification of lighting and light-signalling Regulations. WP.29 noted that this issue would be introduced in detail under agenda item 4.2 (para. 41. below).

29. The Chair of GRE also reported on a proposal to modify the transitional provisions of earlier series of amendments to Regulation No. 48 to allow for optional installation of new equipment, which is normally approved under the latest series of amendments, with a view to increasing traffic safety.

30. Finally, the Chair of GRE reported that GRE, when tackling the electromagnetic compatibility of trolleybuses in the framework of Regulation No. 10, had realized that trolleybuses are dual-mode vehicles which may also need to be addressed under other Regulations beyond the competence of GRE. WP.29 noted that the Working Parties concerned would be invited to consider this issue jointly with GRE.