Charter of Fundamental Rights of the European Union
Article 4 relates to member states' sovereignty and obligations. Article 5 sets out the principles of conferral, subsidiarity and proportionality with respect to the limits of its powers. Article 6 binds the EU to the Charter of Fundamental Rights of the European Union and the European Convention on Human Rights. Article 7 deals with the suspension of a member state and article 8 deals with establishing close relations with neighbouring states.