Home2004 Treaties and Agreements ...Switzerland (04-0930.1) – Agreement for the Enforcement of Maintenance (Support) Obligations hide Switzerland (04-0930.1) – Agreement for the Enforcement of Maintenance (Support) Obligations TIAS Office of Treaty Affairs September 30, 2004 Private International Law: Maintenance Agreement signed at Washington August 31, 2004; entered into force September 30, 2004. Download attachment [683 KB] Tags Private International Law Switzerland Treaties