- 02580 - Electrical and Communication Structures
- 10 13 00 - Directories
- 10 13 13 - Electronic Directories
- 10 17 00 - Telephone Specialties
- 10 17 13 - Telephone Directory Units
- 10 17 16 - Telephone Enclosures
- 10 17 19 - Telephone Shelving
- 10410 - Directories
- 10750 - Telephone Specialties
- 11 19 00 - Detention Equipment
- 11 28 00 - Office Equipment
- 11 52 00 - Audio-Visual Equipment
- 11 52 13 - Projection Screens
- 11 52 16 - Projectors
- 11 70 00 - HEALTHCARE EQUIPMENT
- 11130 - Audio-Visual Equipment
- 11190 - Detention Equipment
- 11680 - Office Equipment
- 11700 - Medical Equipment
- 13700 - Security Access & Surveillance
- 13850 - Detection and Alarm
- 16700 - Communications
- 16720 - Telephone and Intercommunication Equipment
- 16810 - Sound and Video Circuits
- 26 56 13 - Lighting Poles and Standards
- 27 00 00 - COMMUNICATIONS
- 27 10 00 - STRUCTURED CABLING
- 27 30 00 - VOICE COMMUNICATIONS
- 27 50 00 - DISTRIBUTED COMMUNICATIONS AND MONITORING SYSTEMS
- 28 10 00 - ELECTRONIC ACCESS CONTROL AND INTRUSION DETECTION
- 28 13 00 - Access Control
- 28 13 53 - Security Access Detection
- 28 16 00 - Intrusion Detection
- 28 20 00 - ELECTRONIC SURVEILLANCE
- 28 23 00 - Video Surveillance
- 28 30 00 - ELECTRONIC DETECTION AND ALARM
- 28 31 00 - Fire Detection and Alarm
- 28 31 46 - Smoke Detection Sensors
- 28 33 00 - Fuel-Gas Detection and Alarm
- 28 34 00 - Fuel-Oil Detection and Alarm
- 28 35 00 - Refrigerant Detection and Alarm
- 33 71 13 - Electrical Utility Towers
- 33 71 16 - Electrical Utility Poles
- 33 71 19 - Electrical Underground Ducts and Manholes
- 33 81 00 - Communications Structures
- 33 81 16 - Antenna Towers
- 33 81 19 - Communications Utility Poles
- 33 81 26 - Communications Underground Ducts, Manholes, and Handholes
- 33 82 00 - Communications Distribution