On 10 November 2010, the Executive Directors of the SESAR Joint Undertaking and the European Aviation Safety Agency (EASA),|| Patrick Ky and Patrick Goudou, signed cooperation and working arrangements to secure EASA’s support regarding the implementation of the SESAR work programme. EASA’s expertise is sought in different domains, including impact analysis of new concepts on the rulemaking, oversight and certification activities of EASA; advice on methodologies for the acceptable elaboration of safety deliverables (safety cases, safety assessments...); review of these safety deliverables and issue of opinions; or the assessment of ‘certifiability’ of future systems/services derived from SESAR concepts. Additionally, the Agency will provide input in different work packages and will participate in updating the ATM Master Plan as well as the regulatory and standardisation roadmaps. “EASA’s cooperation is good news for SESAR and especially for our members developing the new ATM procedures and technologies. The Agency’s involvement will ensure compliance with highest safety standards which will in return facilitate the certification process”, said Patrick Ky after signing the working arrangement. The participation of Eurocontrol’s safety experts is foreseen to support EASA in this activity. To that end, the agreements have been sent to the Director-General of Eurocontrol, David McMillan, for acceptance.