Director, Legal Bureau(s), International Civil Aviation Organization since 1991. Principal Legal Officer, 8591, Senior Legal Officer, 1979-1985, Legal Officer, 1975-1979, Legal Bureau, International Civil Aviation Organization, Canada. Professor of Law, 1972-1974, Associate Proofessor, 1967-1972, Assistant Professor, 1961-1972, University of Montreal.
Lieutenant (Artillery), Military Serv, 1959-1961. Member of Bar, Bordeaux, France, 1956-1958.