- 02530 - Sanitary Sewerage
- 02600 - Drainage and Containment
- 02630 - Storm Drainage
- 02640 - Culverts and Manufactured Construction
- 06 50 00 - STRUCTURAL PLASTICS
- 06 60 00 - PLASTIC FABRICATIONS
- 06 61 13 - Cultured Marble Fabrications
- 06 61 16 - Solid Surfacing Fabrications
- 06 63 00 - Plastic Railings
- 06 64 00 - Plastic Paneling
- 06 82 00 - Glass-Fiber-Reinforced Plastic
- 06500 - Structural Plastics
- 06600 - Plastic Fabrications
- 15105 - Pipes and Tubes
- 15120 - Piping Specialties
- 15150 - Sanitary Waste and Vent Piping
- 15160 - Storm Drainage Piping
- 15180 - Heating and Cooling Piping
- 15190 - Fuel Piping
- 15200 - Process Piping
- 15220 - Process Water & Waste Piping
- 15300 - Fire Protection Piping
- 15410 - Plumbing Fixtures
- 15860 - Air Cleaning Devices
- 21 05 19 - Meters and Gages for Fire-Suppression Systems
- 21 11 00 - Facility Fire-Suppression Water-Service Piping
- 22 05 19 - Meters and Gages for Plumbing Piping
- 22 13 16 - Sanitary Waste and Vent Piping
- 22 13 23 - Sanitary Waste Interceptors
- 22 13 26 - Sanitary Waste Separators
- 22 14 00 - Facility Storm Drainage
- 22 14 13 - Facility Storm Drainage Piping
- 22 14 26 - Facility Storm Drains
- 22 40 00 - PLUMBING FIXTURES
- 22 66 00 - Chemical-Waste Systems for Laboratory and Healthcare Facilities
- 22 67 00 - Processed Water Systems for Laboratory and Healthcare Facilities
- 22 67 13 - Processed Water Piping for Laboratory and Healthcare Facilities
- 23 05 19 - Meters and Gages for HVAC Piping
- 23 10 00 - FACILITY FUEL SYSTEMS
- 23 11 00 - Facility Fuel Piping
- 23 11 13 - Facility Fuel-Oil Piping
- 23 11 23 - Facility Natural-Gas Piping
- 23 11 26 - Facility Liquid-Petroleum Gas Piping
- 23 12 13 - Facility Fuel-Oil Pumps
- 23 20 00 - HVAC PIPING AND PUMPS
- 23 21 13 - Hydronic Piping
- 23 21 23 - Hydronic Pumps
- 23 22 13 - Steam and Condensate Heating Piping
- 23 22 23 - Steam Condensate Pumps
- 23 23 00 - Refrigerant Piping
- 23 25 00 - HVAC Water Treatment
- 23 35 13 - Sawdust Collection Systems
- 23 40 00 - HVAC AIR CLEANING DEVICES
- 23 41 00 - Particulate Air Filtration
- 23 41 33 - High-Efficiency Particulate Filtration
- 23 41 43 - Ultra-Low Penetration Filtration
- 23 43 00 - Electronic Air Cleaners
- 33 30 00 - SANITARY SEWERAGE UTILITIES
- 33 31 00 - Sanitary Utility Sewerage Piping
- 33 32 13 - Packaged Utility Lift Stations
- 33 32 16 - Packaged Utility Wastewater Pumping Stations
- 33 32 19 - Public Utility Wastewater Pumping Stations
- 33 34 00 - Sanitary Utility Sewerage Force Mains
- 33 39 13 - Sanitary Utility Sewerage Manholes, Frames, and Covers
- 33 39 23 - Sanitary Utility Sewerage Cleanouts
- 33 40 00 - STORM DRAINAGE UTILITIES
- 33 41 00 - Storm Utility Drainage Piping
- 33 42 00 - Culverts
- 33 42 13 - Pipe Culverts
- 33 42 16 - Concrete Culverts
- 33 44 00 - Storm Utility Water Drains
- 33 44 13 - Utility Area Drains
- 33 49 13 - Storm Drainage Manholes, Frames, and Covers
- 33 49 23 - Storm Drainage Water Retention Structures
- 40 10 00 - GAS AND VAPOR PROCESS PIPING
- 40 20 00 - LIQUIDS PROCESS PIPING
- 40 23 00 - Water Process Piping
- 40 23 13 - De-Ionized Water Process Piping
- 40 23 16 - Distilled-Water Process Piping
- 40 23 33 - Reverse-Osmosis Water Process Piping
- 44 11 16 - Industrial Dust Collectors