The Director General is the senior officer of the Icelandic Civil Aviation Administration (ICAA) which is under the auspices of the Ministry of the Interior and, at the same time, the Minister of the Interior.

Pétur K. Maack was appointed Director General on 1 January 2007.

Pétur worked for nearly a decade as the Director of the Flight Safety Division of the ICAA. Pétur is an industrial engineer with a masters degree from the Technical University of Denmark (Danmarks Tekniske Hojskole) in the field of organisation and planning and he has a Ph.D. from the same university. He has wide-ranging experience in aviation, spanning almost all aviation fields, for example, certification and maintenance issues, flight operations, training of flight crew members, aerodrome operations, flight security issues, and international aviation. Pétur also has experience in international cooperation; both in research and teaching at the university level as well as in the aviation world. For a number of years, he was an associate professor and later professor in the Faculty of Engineering at the University of Iceland.

The daily management of the ICAA is in the hands of the Director General and the three directors of the Administration Division, Flight Safety Division, and Air Navigation and Aerodrome Division.

The Director General supervises the administration of the ICAA, its communication with ministries and other institutions, as well as communication with various international institutions and organisations. This includes the participation of Iceland in the International Civil Aviation Organisation (ICAO), the Joint Aviation Authorities (JAA), and the European Aviation Safety Agency (EASA). The director generals of civil aviation in the Nordic Countries also collaborate and meet regularly.

The Special Projects Office falls directly under the Director General