No L 181/40 Official Journal of the European Communities 12. 7. 88 (Acts whose publication is not obligatory) COMMISSION COMMISSION DIRECTIVE of 17 May 1988 on the adaptation to technical progress of Council Directive 77/649/EEC on the approximation of the laws of the Member States relating to the field of vision of motor vehicle drivers (88/366/EEC) THE COMMISSION QF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, Having regard to Council Regulation (EEC) No 70/156/EEC of 6 February 1970 on the approximation of the laws of the Member States relating to the type approval of mator vehicles and their trailers ('), as last amended by Directive 87/403/EEC (9, and in particular Article 11 thereof, Having regard to Council Regulation (EEC) No 77/649/EEC of 27 September 1977 on the approximation of the laws of the Member States relating to the field of vision of motor vehicle drivers(’), as amended by Directive 81/643/EEC (¥), and in particular Article § " thereof, Whereas vehicle design has developed, in particular as a result of the influence of aerodynamic research intended to save fuel, which has often caused windscreen posts to be quite considerably raked; whereas the current requirements relating to the binocular obstruction due to windscreen posts should be amended in order to alleviate the difficulties encountered by manufacturers in producing vehicles having optimum drag coefficients (Cd; ' . Whereas practical experience has demonstrated the need also to amend certain requirements relating ‘to radio aerials’ and ‘defrosting/demisting’ conductors which are integral with the windscreen in order to enable optimum quality and performance to be obtained which are compatible with highest-performance radio installations, () OJ No L 42, 23. 2. 1970, p. 1. OJ No L 220, 8. 8. 1987, p. 44. () OJ No L 267, 19. 10. 1977, p. 1. () OJ No L 231, 15. 8. 1981, p. 41. and to permit an increase in the performance and efficiency of windscreen defrosting and demisting while maintaining good optical quality and without obstructing the field of vision; Whereas the measures provided for in this Directive are in accordance with the opinion of the Committee on the - Adaptation to Technical Progress of the Directives aimed at the Removal of Technical Barriers to Trade in the’ Motor Vehicles Sector, HAS ADOPTED THIS DIRECTIVE: Article 1 The list of Annexes and Annexes I and IV to Directive 77/649/EEC are amended in accordance with the Annex to'this Directive. ‘ - Article 2 Member States shall bring into force the provisions necessary in order to comply with this Directive not later than 1 October 1988 and shall forthwith inform the Commission thereof. ' Article 3 This Directive is addressed to the Member States. Done at Brussels, 17 May 1988. For the Commission COCKFIELD - Vice-President