The Community acquis or acquis communautaire (/ˈækiː kəˈmjuːnətɛər/; French: [aˌki kɔmynoˈtɛːʁ]), sometimes called the EU acquis and often shortened to acquis, is the accumulated legislation, legal acts, and court decisions which constitute the body of European Union law. The term is French: acquis meaning "that which has been acquired or obtained", and communautaire meaning "of the community".
During the process of the enlargement of the European Union, the acquis was divided into 31 chapters for the purpose of negotiation between the EU and the candidate member states for the fifth enlargement (the ten that joined in 2004 plus Romania and Bulgaria which joined in 2007). These chapters were:
For the negotiations with Croatia (which joined in 2013), Iceland, Turkey, Montenegro, Serbia and in the future, with Macedonia, Albania (candidate countries), the acquis is split up into 35 chapters instead, with the purpose of better balancing between the chapters: dividing the most difficult ones into separate chapters for easier negotiation, uniting some easier chapters, moving some policies between chapters, as well as renaming a few of them in the process: