Dr. Ruwantissa Abeyratne has worked in the field of aviation law and management for more than 35 years. He is currently Senior Associate, Air Law and Policy at Aviation Strategies International in Montreal and Visiting Professor, Aviation Law and Policy at McGill University. At retirement from the International Civil Aviation Organization after 23 years of service at various senior positions in air transport and air law, Dr. Abeyratne was Coordinator, Air transport Programmes as well as Senior Legal Officer, heading the Treaty Office of ICAO. He also advised States on their registration and depository obligations with regard to international treaties and their adherence thereto and was General Counsel for ICAO staff members. Prior to his service at ICAO, Dr. Abeyratne was, for 8 years at Airlanka, serving the airline as Chief Coordinator and Head of International Relations and Insurance. Dr. Abeyratne, holds the degree of doctor of civil laws (DCL) from McGill University, the degree of doctor of philosophy (PhD) from the University of Colombo, the degree of master of laws (LL.M) from Monash University, Victoria, Australia, and the degree of bachelor of laws (LL.B) from the University of Colombo.  He is the author of 35 books and over 425 journal articles on aerospace law and economics.