30. 6. 97 Official Journal of the European Communities No L 171/1 {Acts whose publication is obligatory) COMMISSION DIRECTIVE 97/28/EC of 11 June 1997 adapting to technical progress Council Directive 76/756/EEC relating to the installation of lighting and light-signalling devices on motor vehicles and their trailers (Text with EEA relevance) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Community, Having regard to Council Directive 70/156/EEC relating to the type-approval of motor vehicles and their trailers ('), as last amended by European Parliament and Council Directive 96/79/EC(?), and in particular Article 13 (2) thereof, Having regard to Council Directive 76/756/EEC of 27 July 1976 on the approximation of the laws of the Member States relating to the installation of lighting and light-signalling devices on motor vehicles and their trailers (*), as last amended by Commission Directive 91/663/EEC(*), and in particular Article 5 thereof, Whereas Directive 76/756/EEC is one of the separate Directives of the EC type-approval procedure which has been established by Directive 70/156/EEC; whereas, consequently, the provisions laid down in Directive 70/156/EEC relating to vehicle systems, components and separate technical units apply to this Directive; Whereas, in particular, Articles 3 (4) and 4 (3) of Directive 70/156/EEC require each separate Directive to have attached to it an information document and also a type-approval certificate based on Annex VI to that Directive in order that type-approval may be computerized; whereas the type-approval certificate ) O) No L 42, 23. 2. 1970, p. 1. %) O] No L 18, 21. 1. 1997, p. 7. ) O No L 262, 27. 9. 1976, p. 1. ) OJ No L 366, 31. 12. 1991, p. 17. provided for in Directive 76/756/EEC must be amended accordingly; Whereas the procedures need to be simplified in order to maintain the equivalence, established by Article 9 (2) of Directive  70/156/EEC, between certain separate Directives and the corresponding regulations of the United Nations’ Economic Commission for Europe when the said regulations are amended; whereas, as a first step, the technical requirements of Directive 76/756/EEC need to be replaced by those of Regulation No 48 by way of cross-reference; Whereas, in order to improve road traffic safety, it has inter alia been decided to require the mandatory installation of a third stop lamp on vehicles of category M, and to permit the optional installation of daytime running lamps on motor vehicles; Whereas there is a need to examine further the optional provisions relating to the performance requirements of individual lighting and light signalling devices and their installation on motor vehicles and their trailers; whereas it is essential that the necessary technical work be completed so that further amendments can be introduced expeditiously into Directive 76/756/EEC; Whereas reference is made to Council Directive 76/757/EEC (?), as last amended by Commission Directive 97/129/EC (%); Whereas the measures provided for in this Directive are in accordance with the opinion of the Committee for Adaptation to Technical Progress established by Directive 70/156/EEC, (°) O] No L 262, 27. 9. 1976, p. 32. (®) See p. 11 of this Official Journal.