- 11 53 00 - Laboratory Equipment
- 11600 - Laboratory Equipment
- 13100 - Lightning Protection
- 15060 - Hangers and Supports
- 15075 - Mechanical Identification
- 15105 - Pipes and Tubes
- 15500 - Heat Generation
- 15540 - Fuel-Fired Heaters
- 15700 - Heating, Ventilating, Air Conditioning Equipment
- 15760 - Terminal Heating and Cooling Units
- 16060 - Grounding and Bonding
- 16070 - Hangers and Supports
- 16075 - Electrical Identification
- 16120 - Conductors and Cables
- 16130 - Raceway and Boxes
- 16140 - Wiring Devices
- 16300 - Transmission and Distribution
- 16400 - Low-Voltage Distribution
- 16420 - Enclosed Controllers
- 16430 - Low-Voltage Switchgear
- 16440 - Switchboards, Panelboards, and Control Cen
- 16470 - Power Distribution Units
- 16490 - Components and Accessories
- 16500 - Lighting
- 16510 - Interior Luminaires
- 16520 - Exterior Luminaires
- 16530 - Emergency Lighting
- 16540 - Classified Location Lighting
- 16560 - Signal Lighting
- 16580 - Lighting Accessories
- 16720 - Telephone and Intercommunication Equipment
- 16810 - Sound and Video Circuits
- 16840 - Broadcast Studio Video Equipment
- 21 05 29 - Hangers and Supports for Fire-Suppression Piping and Equipment
- 21 05 53 - Identification for Fire-Suppression Piping and Equipment
- 22 05 29 - Hangers and Supports for Plumbing Piping and Equipment
- 22 05 53 - Identification for Plumbing Piping and Equipment
- 23 05 29 - Hangers and Supports for HVAC Piping and Equipment
- 23 05 53 - Identification for HVAC Piping and Equipment
- 23 50 00 - CENTRAL HEATING EQUIPMENT
- 23 55 00 - Fuel-Fired Heaters
- 23 55 13 - Fuel-Fired Duct Heaters
- 23 55 23 - Gas-Fired Radiant Heaters
- 23 55 33 - Fuel-Fired Unit Heaters
- 23 60 00 - CENTRAL COOLING EQUIPMENT
- 23 70 00 - CENTRAL HVAC EQUIPMENT
- 23 80 00 - DECENTRALIZED HVAC EQUIPMENT
- 23 82 00 - Convection Heating and Cooling Units
- 23 82 16 - Air Coils
- 23 82 19 - Fan Coil Units
- 23 82 23 - Unit Ventilators
- 23 82 26 - Induction Units
- 23 82 33 - Convectors
- 23 82 36 - Finned-Tube Radiation Heaters
- 23 82 39 - Unit Heaters
- 26 05 13 - Medium-Voltage Cables
- 26 05 19 - Low-Voltage Electrical Power Conductors and Cables
- 26 05 23 - Control-Voltage Electrical Power Cables
- 26 05 26 - Grounding and Bonding for Electrical Systems
- 26 05 29 - Hangers and Supports for Electrical Systems
- 26 05 33 - Raceway and Boxes for Electrical Systems
- 26 05 48 - Vibration and Seismic Controls for Electrical Systems
- 26 05 53 - Identification for Electrical Systems
- 26 10 00 - MEDIUM-VOLTAGE ELECTRICAL DISTRIBUTION
- 26 20 00 - LOW-VOLTAGE ELECTRICAL TRANSMISSION
- 26 23 00 - Low-Voltage Switchgear
- 26 24 00 - Switchboards and Panelboards
- 26 26 00 - Power Distribution Units
- 26 27 00 - Low-Voltage Distribution Equipment
- 26 27 16 - Electrical Cabinets and Enclosures
- 26 27 19 - Multi-Outlet Assemblies
- 26 27 23 - Indoor Service Poles
- 26 27 26 - Wiring Devices
- 26 29 13 - Enclosed Controllers
- 26 41 00 - Facility Lightning Protection
- 26 50 00 - LIGHTING
- 26 51 00 - Interior Lighting
- 26 52 00 - Emergency Lighting
- 26 54 00 - Classified Location Lighting
- 26 55 33 - Hazard Warning Lighting
- 26 55 36 - Obstruction Lighting
- 26 56 00 - Exterior Lighting
- 26 56 16 - Parking Lighting
- 26 56 19 - Roadway Lighting
- 26 56 23 - Area Lighting
- 26 56 29 - Site Lighting
- 26 56 33 - Walkway Lighting
- 26 56 36 - Flood Lighting
- 26 56 68 - Exterior Athletic Lighting
- 27 10 00 - STRUCTURED CABLING
- 27 30 00 - VOICE COMMUNICATIONS
- 27 41 16 - Integrated Audio-Video Systems and Equipment
- 27 50 00 - DISTRIBUTED COMMUNICATIONS AND MONITORING SYSTEMS
- 33 71 00 - Electrical Utility Transmission and Distribution
- 33 79 93 - Site Lightning Protection
- 33 82 00 - Communications Distribution
- 34 41 13 - Traffic Signals
- 34 42 13 - Railway Signals
- 34 43 13 - Airfield Signals
- 34 48 13 - Operating Bridge Signals
- 35 11 13 - Signaling Equipment for Waterways
- 35 12 13 - Marine Signaling Equipment
- 35 13 13 - Signaling Equipment for Dams