The development contract of the Athens International Airport was ratified by law 2338/1995 (GG 202 / Α / 14.09.1995) while by law 4594/2019 (GG 29 / Α / 19.02.2019) the extension of the contract was ratified for a period twenty (20) years which begins on June 12, 2026 and ends on June 11, 2046.