This document is a guide for organizations to assist in their security planning efforts. It outlines a comprehensive security planning workbook that can be utilized by individuals with varying degrees of security expertise. The workbook is designed to compile essential information necessary for developing a robust security plan. It emphasizes the importance of a structured approach to security planning, allowing users to work at their own pace and save their progress. The document details the formation of a planning team, including the roles of a Security Coordinator and Safety Team, and provides a framework for conducting risk assessments. It also includes sections on mitigation considerations, additional elements of a security plan, and resources for further assistance. The workbook is adaptable for organizations of all sizes and encourages the involvement of diverse team members to enhance security planning efforts.