Home2018 Treaties and Agreements ...Kazakhstan (18-521.1) – Agreement on Assessing Air Navigation Service Fees for State Aircraft hide Kazakhstan (18-521.1) – Agreement on Assessing Air Navigation Service Fees for State Aircraft TIAS Office of Treaty Affairs May 21, 2018 Defense Agreement signed at Washington January 12, 2018; entered into force May 21, 2018. Download attachment [625 KB] Tags Defense Kazakhstan Treaties