Council Directive 91/542/EEC of 1 October 1991 amending Directive 88/77/EEC on the approximation of the laws of the Member States relating to the measures to be taken against the emission of gaseous pollutants from diesel engines for use in vehicles
TREATY ESTABLISHING THE EUROPEAN ECONOMIC COMMUNITY, PART FIVE - INSTITUTIONS OF THE COMMUNITY, TITLE I - PROVISIONS GOVERNING THE INSTITUTIONS, CHAPTER 1: THE INSTITUTIONS, SECTION 2: THE COUNCIL, ARTICLE 149