4. A SIPS operator shall define the SIPS’s critical functions, operations and services. The SIPS operator shall identify specific scenarios that may prevent it from being able to provide these critical operations and services as a going concern and shall assess the effectiveness of all options for recovery and, with the exception of Eurosystem SIPS, an orderly wind-down. It shall review the SIPS’s critical operations and services at least annually. Based on this assessment, a SIPS operator shall prepare a viable plan for the SIPS’s recovery and, except for Eurosystem SIPS, an orderly wind-down. The recovery and orderly wind-down plan shall contain, inter alia, a substantive summary of the key recovery and orderly wind-down strategies, a restatement of the SIPS’s critical operations and services, and a description of the measures needed to implement the key strategies. A SIPS operator shall, where applicable, provide the relevant authorities with the information needed for the purposes of resolution planning.