Business continuity requires careful planning to ensure necessary resources are available following a disaster. Within 24 hours a business will need managers, primary site staff, office space, basic office equipment, and desktop computers and printers to restore minimal operations. Between 24-72 hours, additional staff for relocation and recovery sites, more advanced office technology, access to vital records and data backups, and production facilities may be required. One week post-disaster, custom equipment, raw materials, and services from sole source suppliers may need to be secured to fully restore normal business functions.