Home2007 Treaties and Agreements ...Chad (07-406) – Agreement Concerning the Creation of the American International School in N’Djamena hide Chad (07-406) – Agreement Concerning the Creation of the American International School in N’Djamena TIAS Office of Treaty Affairs April 6, 2007 Education Agreement signed at N’Djamena March 5, 2007; entered into force April 6, 2007. Download attachment [683 KB] Tags Chad Education Treaties