Integration of environmental requirements into other policies is a priority objective of the new, 7th environmental action programme of the EU. Principle of environmental integration was developed by the international environmental policy; it was inserted into environmental policy principles and into provisions of the Founding Treaty at the establishment of the EC environmental policy. The aim of the environmental integration principle harmful environmental effects, thus to serve sustainable development. Objectives of the EU sustainable development and sustainable growth strategies cannot be realized without integration of environmental requirements: integration of economic, social and environmental aspects of development can ensure the establishment of a resource- efficient, competitive economy, free from environmental degradation, improvement of quality of human life, meeting the needs of present and future generations, and preservation of natural resources which serves as the fundament for development of the other two pillars. Environmental integration is a principle provided for in the Treaty on the Functioning of the European Union, binding the decision-makers and legislators of the EU and the Member States; failure of its application might lead to judicial review and annulment of an act.