Artikel 5

1. The SKA Project shall be designed to be capable of transformational science, with a combination of sensitivity, angular resolution, and survey speed far surpassing current state-of-the-art instruments at relevant radio frequencies.
2. The SKA Project shall be delivered in phases, beginning with SKA-1, with the active intent to proceed to subsequent phases.
3. SKA-1 shall be hosted in Australia and the Republic of South Africa. The components of SKA-1 to be located in each Host Country, and components of the global headquarters of the SKAO to be located in the Headquarters Country, shall be described in a technical document to be approved by unanimous decision of the Council.
4. Subsequent phases of the SKA Project shall commence following approval by decision of the Council. Participation in the construction of such subsequent phases shall be optional. Financial contributions towards the implementation of a subsequent phase shall be determined in accordance with the Financial Protocol of the Square Kilometre Array Observatory.