10 44 00 Fire Protection Specialties 21 00 00 Fire Suppression 21 01 00 Operation and Maintenance of Fire Suppression 21 09 00 Instrumentation and Control for Fire-Suppression Systems 21 11 00 Facility Fire-Suppression Water-Service Piping 21 13 00 Fire-Suppression Sprinkler Systems 23 23 00 Refrigerant Piping

21 00 00 Fire Suppression 21 01 00 Operation and Maintenance of Fire Suppression 21 10 00 Water-Based Fire-Suppression Systems 21 12 00 Fire-Suppression Standpipes 21 13 00 Fire-Suppression Sprinkler Systems 21 16 00 Fire-Suppression Pressure Maintenance Pumps 21 30 00 Fire Pumps 21 31 00 Centrifugal Fire Pumps 21 32 00 Vertical-Turbine Fire Pumps

21 01 00 Operation and Maintenance of Fire Suppression 21 09 00 Instrumentation and Control for Fire-Suppression Systems 28 01 00 Operation and Maintenance of Electronic Safety and Security 28 05 00 Common Work Results for Electronic Safety and Security 28 06 00 Schedules for Electronic Safety and Security 28 08 00 Commissioning of Electronic Safety and Security 28 10 00 Electronic Access Control and Intrusion Detection 28 13 00 Access Control 28 16 00 Intrusion Detection 28 23 00 Video Surveillance 28 31 00 Fire Detection and Alarm 28 39 00 Mass Notification Systems