No L 175/40 Official Journal of the European Communities - 5.7.85 COUNCIL DIRECTIVE of 27 June 1985 on the assessment of the effects of certain public and private projects on the environment (85/337/EEC) THE COUNCIL OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Economic Community, and in particular Articles 100 and 235 thereof, Having regard to the proposal from ‘the Commis- sion ("), Having regard to the opinion of the European Parliament (%), Having regard to the opinion of the Economic and Social Committee (%), Whereas the 1973 (*) and 1977 (’) action programmes of the European Communities on the environment, as well as the 1983 (%) action programme, the main outlines of which have been approved by the Council of the European Communities and the representatives of the Governments of the Member States, stress that the best environmental policy consists in preventing the creation of pollution or nuisances at source, rather than subsequently trying to counteract their effects; whereas they affirm the need to take effects on the environment into account at the earliest possible stage in all the technical planning and decision-making processes ; whereas to that end, they provide for the implementation of procedures to evaluate such effects ; Whereas the disparities between the laws in force in the various Member States with regard to the assess- ment of the environmental effects of public and private projects may create unfavourable competitive conditions and thereby directly affect the functioning of the common market ; whereas, therefore, it is neces- sary to approximate national laws in this field pursuant to Article 100 of the Treaty; Whereas, in addition, it is necessary to achieve one of the Community’s objectives in the sphere of the protection of the environment and the quality of life ; () OJ No C 169, 9. 7. 1980, p. 14. () OJ No C 66, 15. 3. 1982, p. 89. () OJ No C 185, 27. 7. 1981, p. 8. () OJ No C 112, 20. 12. 1973, p. 1. () OJ No C 139, 13. 6. 1977, p. 1. (9 OJ No C 46, 17. 2. 1983, p. 1. Whereas, since the Treaty has not provided the powers required for this end, recourse should be had to Article 235 of the Treaty; Whereas general principles for the assessment of envi- ronmental effects should be introduced with a view to supplementing and coordinating development consent procedures governing public and private projects likely to have a major effect on the environment; Whereas development consent for public and private projects which are likely to have significant effects on the environment should be granted only after prior assessment of the likely significant environmental effects of these projects has been carried out ; whereas this assessment must be conducted on the basis of the appropriate information supplied by the developer, which may be supplemented by the authorities and by the people who may be concerned by the project in question ; Whereas the principles of the assessment of environ- mental effects should be harmonized, in particular with reference to the projects which should be subject to assessment, the main obligations of the developers and the content of the assessment; Whereas projects belonging to certain types have significant effects on the environment and these projects must as a rule be subject to systematic assess- ment ; ' Whereas projects of other types may not have signifi- cant effects on the environment in every case and whereas these projects should be assessed where the Member States consider that their characteristics so require ; Whereas, for projects which are subject to assessment, a certain ‘minimal amount of information must be supplied, concerning the project and its effects; Whereas the effects of a project on the environment must be assessed in order to take account of concerns to protect human health, to contribute by means of a better environment to the quality of life, to ensure maintenance of the diversity of species and to main- tain the reproductive capacity of the ecosystem as a basic resource for life ;