This document is an excerpt from the EUR-Lex website
The EU treaties are binding agreements between EU member countries. They set out EU objectives, rules for EU institutions, how decisions are made and the relationship between the EU and its member countries. Every action taken by the EU is founded on treaties.
Treaties are amended to make the EU more efficient and transparent, prepare for new member countries and introduce new areas of cooperation.
EUR-Lex contains the founding, amending and accession treaties, as well as some protocols.