The fundamental impetus for this political transformation was a recommendation by the Council of Europe in 1990 that, if Andorra wished to attain full integration in the European Union (EU), it should adopt a modern constitution that guarantees the rights of those living and working there. A Tripartite Commission – made up of representatives of the co-princes, the General Council, and the Executive Council – was formed in 1990 and finalized the draft constitution in April 1991, making the new constitution a fact.