Old revisions Add to book Export to PDF Book Creator Add this page to your book Book Creator Remove this page from your book Manage book (0 page(s)) Help Muster Zone A zone designated for the gathering of members in case of an emergency such as a fire. This is used to monitor the number and roster of personnel in a certain zone, and to notify administrators via an alarm or alert if a user has remained in a particular zone for a certain period of time.