28 00 00 Electronic Safety and Security 26 09 00 Instrumentation and Control for Electrical Systems 28 05 00 Common Work Results for Electronic Safety and Security 28 31 00 Fire Detection and Alarm 27 41 00 Audio-Video Systems 25 05 00 Common Work Results for Integrated Automation 25 13 00 Integrated Automation Control and Monitoring Network 25 57 00 Integrated Automation Control of Communications Systems 25 97 00 Integrated Automation Control Sequences for Communications Systems 27 01 00 Operation and Maintenance of Communications Systems 28 30 00 Electronic Detection and Alarm 40 05 00 Common Work Results for Process Integration

27 40 00 Audio-Video Communications 26 24 00 Switchboards and Panelboards 28 00 00 Electronic Safety and Security 10 40 00 Safety Specialties 41 00 00 Material Processing and Handling Equipment 33 71 00 Electrical Utility Transmission and Distribution 25 58 00 Integrated Automation Control of Electronic Safety and Security Systems 28 23 00 Video Surveillance 26 10 00 Medium-Voltage Electrical Distribution 10 17 00 Telephone Specialties 27 10 00 Structured Cabling 25 13 00 Integrated Automation Control and Monitoring Network 28 01 00 Operation and Maintenance of Electronic Safety and Security 28 08 00 Commissioning of Electronic Safety and Security 27 21 00 Data Communications Network Equipment 27 51 00 Distributed Audio-Video Communications Systems 33 83 00 Wireless Communications Distribution 40 01 00 Operation and Maintenance of Process Integration 41 01 00 Operation and Maintenance of Material Processing and Handling Equipment 41 08 00 Commissioning of Material Processing and Handling Equipment

25 00 00 Integrated Automation 26 24 00 Switchboards and Panelboards 26 01 00 Operation and Maintenance of Electrical Systems 31 23 00 Excavation and Fill 28 00 00 Electronic Safety and Security 25 10 00 Integrated Automation Network Equipment 25 58 00 Integrated Automation Control of Electronic Safety and Security Systems 28 13 00 Access Control 48 14 00 Solar Energy Electrical Power Generation Equipment 26 56 00 Exterior Lighting 27 10 00 Structured Cabling 40 94 00 Digital Process Controllers 25 13 00 Integrated Automation Control and Monitoring Network 27 21 00 Data Communications Network Equipment 25 11 00 Integrated Automation Network Devices 25 12 00 Integrated Automation Network Gateways 25 53 00 Integrated Automation Control of Fire-Suppression Systems 26 11 00 Substations 26 41 00 Facility Lightning Protection 34 40 00 Transportation Signaling and Control Equipment 48 15 00 Wind Energy Electrical Power Generation Equipment