28 00 00 Electronic Safety and Security
28 01 00 Operation and Maintenance of Electronic Safety and Security
28 01 10Operation and Maintenance of Access Control28 01 10.51Maintenance and Administration of Access Control28 01 10.71Revisions and Upgrades of Access Control28 01 20Operation and Maintenance of Video Surveillance28 01 20.51Maintenance and Administration of Video Surveillance28 01 20.71Revisions and Upgrades of Video Surveillance28 01 30Operation and Maintenance of Security Detection, Alarm, and Monitoring28 01 30.51Maintenance and Administration of Security Detection, Alarm, and Monitoring28 01 30.71Revisions and Upgrades of Security Detection, Alarm, and Monitoring28 01 50Operation and Maintenance of Specialized Systems28 01 50.51Maintenance and Administration of Specialized Systems28 01 50.71Revisions and Upgrades of Specialized Systems28 01 60Operation and Maintenance of Mass Notification28 01 60.51Maintenance and Administration of Mass Notification28 01 60.71Revisions and Upgrades of Mass Notification28 01 70Operation and Maintenance of Life Safety28 01 70.51Maintenance and Administration of Life Safety28 01 70.71Revisions and Upgrades of Life Safety28 01 80Operation and Maintenance of Fire Detection and Alarm28 01 80.51Maintenance and Administration of Fire Detection and Alarm28 01 80.71Revisions and Upgrades of Fire Detection and Alarm