Central Compensation Office CCO
The Central Compensation Office CCO is the Confederation's central implementing body for first-pillar social security, which covers old-age and survivors' insurance OASI, disability insurance DI and compensation for loss of earnings APG. The CCO's mission is to implement international social security agreements.
https://www.zas.admin.ch
ZAS: Was versteckt sich hinter diesen drei Buchstaben? (Erklärfilm auf Youtube)