- 11 24 00 - Maintenance Equipment
- 11 24 13 - Floor and Wall Cleaning Equipment
- 11 24 16 - Housekeeping Carts
- 11 24 19 - Vacuum Cleaning Systems
- 11 24 23 - Window Washing Systems
- 11 40 00 - FOODSERVICE EQUIPMENT
- 11 41 00 - Food Storage Equipment
- 11 47 00 - Ice Machines
- 11 57 00 - Vocational Shop Equipment
- 11 78 00 - Mortuary Equipment
- 11010 - Maintenance Equipment
- 11400 - Food Service Equipment
- 11405 - Food Storage Equipment
- 11435 - Ice Machines
- 11500 - Industrial and Process Equipment
- 11780 - Mortuary Equipment
- 13400 - Measurement and Control Instrumentation
- 15070 - Mechanical Sound, Vibration, and Seismic C
- 15110 - Valves
- 15610 - Refrigeration Compressors
- 15660 - Liquid Coolers and Evaporative Condensers
- 15670 - Refrigerant Condensing Units
- 15700 - Heating, Ventilating, Air Conditioning Equipment
- 15720 - Air Handling Units
- 15730 - Unitary Air Conditioning Equipment
- 15760 - Terminal Heating and Cooling Units
- 16840 - Broadcast Studio Video Equipment
- 21 05 23 - General-Duty Valves for Water-Based Fire-Suppression Piping
- 21 05 48 - Vibration and Seismic Controls for Fire-Suppression Piping and Equipment
- 22 05 23 - General-Duty Valves for Plumbing Piping
- 22 05 48 - Vibration and Seismic Controls for Plumbing Piping and Equipment
- 23 05 23 - General-Duty Valves for HVAC Piping
- 23 05 48 - Vibration and Seismic Controls for HVAC Piping and Equipment
- 23 50 00 - CENTRAL HEATING EQUIPMENT
- 23 60 00 - CENTRAL COOLING EQUIPMENT
- 23 61 00 - Refrigerant Compressors
- 23 61 13 - Centrifugal Refrigerant Compressors
- 23 61 16 - Reciprocating Refrigerant Compressors
- 23 61 23 - Rotary-Screw Refrigerant Compressors
- 23 63 00 - Refrigerant Condensers
- 23 65 33 - Liquid Coolers
- 23 70 00 - CENTRAL HVAC EQUIPMENT
- 23 73 13 - Modular Indoor Central-Station Air-Handling Units
- 23 73 23 - Custom Indoor Central-Station Air-Handling Units
- 23 74 00 - Packaged Outdoor HVAC Equipment
- 23 75 00 - Custom-Packaged Outdoor HVAC Equipment
- 23 76 00 - Evaporative Air-Cooling Equipment
- 23 80 00 - DECENTRALIZED HVAC EQUIPMENT
- 23 81 00 - Decentralized Unitary HVAC Equipment
- 23 81 13 - Packaged Terminal Air-Conditioners
- 23 81 16 - Room Air-Conditioners
- 23 81 26 - Split-System Air-Conditioners
- 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
- 27 41 16 - Integrated Audio-Video Systems and Equipment
- 40 90 00 - INSTRUMENTATION AND CONTROL FOR PROCESS SYSTEMS
- 41 00 00 - MATERIAL PROCESSING AND HANDLING EQUIPMENT
- 42 00 00 - PROCESS HEATING, COOLING, AND DRYING EQUIPMENT
- 43 00 00 - PROCESS GAS AND LIQUID HANDLING, PURIFICATION, AND STORAGE EQUIPMENT
- 45 00 00 - INDUSTRY-SPECIFIC MANUFACTURING EQUIPMENT