The assessment is based on the 2007 Eurostat Monitoring Report on the Sustainable Development Indicators (SDI's); 27 Member State progress reports on the implementation of the EU Sustainable Development Strategy and on an independent consultancy study.
Hindamise aluseks on Eurostati 2007. aasta seirearuanne säästva arengu indikaatorite kohta, 27 liikmesriigi arenguaruanded ELi säästva arengu strateegia rakendamise kohta ning sõltumatu konsultatsioonuuring.