The goal of establishing Single European Sky programme was to bring the overall air traffic management system, its technology and procedures, to a new level. SESAR (Single European Sky ATM Research) was the technological pillar of the Single European Sky; its ambitious aim was to create a new generation ATM System in Europe.

In 2012 SESAR developments reached their implementation phase. Estonian ANS signed IDSG (Interim Deployment Steering Group) Consortium Membership Agreement  was signed in February 2012. Established on the FABs basis, the consortium timely coordinated and synchronised the implementation of „Interim Deployment Programme (IDP)“ development projects. As it had been planned, IDSG activities were completed at the end of 2014. The European Commission has tasked the SESAR Deployment Alliance to be a new Deployment Manager; the alliance is a cross industry partnership made up of airline groups, airport operators and ANS providers. The first task of the Manager was to prepare Deployment Programme. The Preliminary Deployment Programme (PDP) was based on the sixth ATM Functionalities (AF) of the Pilot Common Project (PCP); it was ready at the beginning of 2015. Based on PCP, this PDP Programme provides the legal basis for DP Programme to be financed by the European Commission.