1.14. Section 2 provides an overview of geological disposal and its implementation and the step by step approach to developing a geological disposal facility. Section 3 provides guidance on organizational responsibilities. Section 4 discusses the safety approach and Section 5 provides guidance on the preparation of the safety case and safety assessment. Section 6 presents guidance for specific steps in the development of a geological disposal facility. Appendix I provides additional information and guidance on the siting of geological disposal facilities, specifically concerning data needs, and Appendix II provides additional information on post-closure safety assessment.