A prerequisite for the opening of a TIPS DCA is certification by the responsible central bank after successful completion of the certification tests. The documents that describe the framework conditions and requirements for testing activities and the certification of new participants are currently being revised and then made available for download here. In the meantime, you will receive all the information you need for new participation directly from the National Service Desk TARGET Services. In addition to the specified mandatory test cases for certification, there are a number of other test cases, which are recommended by the Bundesbank. In addition, the new participants themselves decide on the type and scope of their further test requirements. TIPS provides a test simulator which acknowledges positive or negative instant payments addressed to it. If necessary, the National Service Desk will attempt to arrange test partners. In addition to the tests in the TIPS test environment, mandatory tests must be carried out in the TARGET test environment in connection with the liquidity supply of TIPS accounts.