As you have learned, every plan is a "living document" and situations change regularly. Based on all of the assessments and identification of stakeholders, you will need to revisit the plan on a regular basis to assure that the plan is still valid for the community/organization. In your initial post, please respond to the following:

1. How often does a physical security organization need to review and update its emergency plan?
2. Please expand on the reasoning behind a review schedule and why it is important to physical security organizations.
3. Share assessments, concerns, and potential strategies to overcome resistance to your plan's management and adaptation (by leadership, staff, communities, customers, etc).
4. Add references.