1. Before establishing a CSD link and on an ongoing basis once the CSD link is established, all CSDs concerned shall identify, assess, monitor and manage all potential sources of risk for themselves and for their participants arising from the CSD link and take appropriate measures to mitigate them.

2. CSDs that intend to establish links shall submit an application for authorisation to the competent authority as required under point (e) of Article 19(1) or notify the competent authority as required under Article 19(5).

3. A link shall provide adequate protection to the linked CSDs and their participants, in particular as regards possible credits taken by CSDs and the concentration and liquidity risks as a result of the link arrangement.

A link shall be supported by an appropriate contractual arrangement that sets out the respective rights and obligations of the linked CSDs and, where necessary, of the CSDs' participants. A contractual arrangement with cross-jurisdictional implications shall provide for an unambiguous choice of law that govern each aspect of the link's operations.