According European Commission's White Paper:
Council of the European Union – Brussels, 10 July 2009, 11225/2/09 REV 2 , CONCL 2, Brussels European Council 18/19 June 2009 – Presidency Conclusions, published in July 1998, p.12:
“33. Sustainable development remains a fundamental objective of the European Union, encompassing an economic, a social and an environmental dimension.
The European Council invites the Council to examine the Commission's progress report on the implementation of the Sustainable Development Strategy with a view to agreeing as soon as possible on the actions which should be implemented with priority.”
Source: → Council of the European Union Brussels, 10 July 2009, 11225/2/09