Plenary (Triennial) Sessions

ECAC meets in Plenary (Triennial) Session once every three years at the European Parliament in Strasbourg, the birthplace of ECAC. The duration of the meeting is one and a half days and it is typically held in June or July. The most recent Triennial Session - the thirty-ninth - was held on 12 July 2021 and exceptionally was a one-day virtual event.

Member State delegations are composed of Directors General of Civil Aviation and their senior advisors. Invitations to attend as observers are also extended to all other ICAO Member States, and to regional organisations (e.g. ACAO, AFCAC, LACAC, ECOWAS, WAEMU) and bilateral partners with which ECAC has signed a Memorandum of Understanding. A number of European and international industry organisations are also invited to be present. The President and Secretary General of ICAO also attend the Triennial Sessions, and are invited to give a keynote address. A typical Session would comprise approximately 160 delegates.

The Triennial Session considers reports on the activity of ECAC since the previous Triennial Session, adopts ECAC's work programme and budget for the next three years, adopts recommendations, resolutions, guidelines or other conclusions, and elects the President, the Vice-Presidents and other members of the Coordinating Committee. The agenda may in addition include contributions and reports as appropriate from non-Member States and regional organisations, and recent Triennial Sessions have also provided an opportunity for general debate on an issue selected as being of interest to all of those present.

From time to time, Plenary Sessions are held in between Triennial Sessions if decisions at plenary level are required - for example, on the admission of a new Member State, or approval of documents.

Most recent Session:

39th Plenary (Triennial) Session (ECAC/39), 12 July 2021


We continue to monitor the COVID-19 outbreak and follow the guidelines and advice from trusted authorities such as the World Health Organization (WHO) and national health authorities.

We advise our public and meeting participants to regularly check the ECAC website or specific meeting portals for the latest information.

Calendar of events and meetings

Download here the provisional calendar of ECAC meetings for 2023 (issue 24/11/22), by field of activity.

Please note this calendar is for information purposes only, dates and locations may change.