In July 2003 the Belgian federal government’s Policy Declaration expressed its intention to assess its sustainable development policy. This Working Paper aims to facilitating this, by delivering a timely evaluation of both the implementation of the first two Federal Plans for Sustainable Development and the Federal strategic policy process in which these plans are elaborated, implemented and monitored. The last part of the Paper describes the strategies for sustainable development at other Belgian and international policy levels, including partnerships for sustainable development. The Belgian Federal Strategy for Sustainable Development is a learning process. The federal authorities have taken important steps to put sustainable development into practice. This paper shows that improvements are necessary and points out where they are possible.