1.5. The objective of this Safety Guide is to provide guidance on how to assess, demonstrate and document the safety of all types of radioactive waste disposal facility. The most important considerations when assessing the safety of radioactive waste disposal facilities after closure are identified, and guidance is provided on best practice in undertaking such assessment and presenting the safety case. This guidance is relevant for operating organizations, which bear the responsibility of preparing the safety case, as well as for the regulatory body, which is responsible for developing regulations and regulatory guidance that determine the basis and scope of the safety case. To further support regulatory processes, the Safety Guide also provides guidance on the review by the regulatory body of the safety case.