The document outlines the roles and responsibilities of the European Data Protection Supervisor (EDPS) and various data protection authorities within the EU, focusing on compliance, supervision, and policy advising related to personal data protection. It highlights the functions of the Article 29 Working Party and the European Data Protection Board (EDPB), which work towards harmonizing data protection laws and resolving disputes among national supervisory authorities. The EDPS was established in 2004 and plays a crucial role in safeguarding privacy within EU institutions while also cooperating with national authorities.