Home1997 Treaties and Agreements ...Mexico (12891) – Memorandum of Cooperation for the Promotion and Development of Civil Aviation hide Mexico (12891) – Memorandum of Cooperation for the Promotion and Development of Civil Aviation TIAS Office of Treaty Affairs October 16, 1997 Transportation: Assistance Memorandum of Cooperation signed at Washington and Mexico September 17, October 14 and 16, 1997; Entered into force October 16, 1997. With letter of understanding. Download attachment [725 KB] Tags Mexico Transportation Treaties