Text originally prepared by Belgium to propose amendments to Regulation No. 107 to align the additional safety prescriptions for trolleybuses (Annex 12) with the corresponding electrical standards (see document GRSG/2013/16). During discussion in the October 2013 session of GRSG, some Contracting Parties felt that the prescriptions for electromagnetic compatibility of trolleybuses belong in Regulation No. 10. So these prescriptions are taken out of the amended proposal (ECE/TRANS/WP.29/GRSG/2014/19) and are proposed here for consideration by GRE for further action.