Article 1
1. Before integrating into the second generation Schengen Information System (SIS II), Member States shall conduct and undergo the tests and test procedure set out in the Annex to this Decision. 2. Member States which intend to implement a substantial change in their N.SIS II or SIRENE application shall request the Management Authority to determine which of the tests among those set out in the Annex to this Decision have to be performed and undergo the test procedure set out in the Annex to this Decision. The Member States concerned shall not implement those changes before the tests have been successfully performed.