Purchasing terms and conditions Current terms and conditionsIf you need to consult previous versions, please contact the Procurement Domain. You will find all regulations in POLYLEX General terms and conditions (GTC) of the Confederation for the procurement of goods French version German version English version General terms and conditions (GTC) of the Confederation for service contracts French version German version English version General terms and conditions for the purchase and maintenance of hardware French version German version English version General terms and conditions for the procurement and maintenance of standard software French version German version English version General terms and conditions for IT work contracts and contracts for the maintenance of individual software packages French version German version English version General terms and conditions for IT services French version German version English version