1. A CSD shall ensure that its systems and communication arrangements with other CSDs, third-country CSDs or market infrastructures are reliable, secure and designed to minimise operational risks.

2. Any arrangement that a CSD enters into with another CSD or another market infrastructures shall provide that:

(a) the other CSD or other financial market infrastructure discloses to the CSD any critical service provider on which the other CSD or market infrastructure relies;

(b) the governance arrangements and management processes in the other CSD or other market infrastructure do not affect the smooth provision of services by the CSD, including the risk-management arrangements and the non-discriminatory access conditions.