The European Union has progressiveley extended the competences of the European Aviation Safety Agency and has developed in the several stages the Single European Sky Infrastrcture. The regulations governing the establishment and functioning of EASA and the Single European Sky framework are currently under revison with the aim to respond to current challenges civil aviation raises. The main learning objectives are: Awarness of the EU regulatory framework and its decision making process in civil aviation; Understanding the EASA Basic Regulation, EASA functions and competences and the roles and responsibilities of various players in civil aviation (ICAO, CAA’s, ATM/AND providers, operators etc); Understand the main pillars of the SES Framework; Know and understand what are the stakeholders involved and who does what; Ability to explain the following concepts: separation of oversight and service provider; subsidiarity; mutual recognition; mandate; difference between service and function; certification; airspace concepts; Main provisions of the EASA and SES packages; Identify the upcoming challenges and risks.