- 02530 - Sanitary Sewerage
- 02600 - Drainage and Containment
- 02630 - Storm Drainage
- 02640 - Culverts and Manufactured Construction
- 03 10 00 - CONCRETE FORMING AND ACCESSORIES
- 03 11 00 - Concrete Forming
- 03 40 00 - PRECAST CONCRETE
- 03100 - Concrete Forms and Accessories
- 03400 - Precast Concrete
- 09 97 00 - Special Coatings
- 13 20 00 - SPECIAL PURPOSE ROOMS
- 13 21 13 - Clean Rooms
- 13 21 16 - Hyperbaric Rooms
- 13 21 23 - Insulated Rooms
- 13 21 26 - Cold Storage Rooms
- 13 21 48 - Sound-Conditioned Rooms
- 13 22 00 - Office Shelters and Booths
- 13 23 00 - Planetariums
- 13 24 16 - Saunas
- 13 24 26 - Steam Baths
- 13 24 66 - Athletic Rooms
- 13 26 00 - Fabricated Rooms
- 13 27 00 - Vaults
- 13 31 00 - Fabric Structures
- 13 31 23 - Tensioned Fabric Structures
- 13 34 00 - Fabricated Engineered Structures
- 13 34 13 - Glazed Structures
- 13 34 16 - Grandstands and Bleachers
- 13 34 19 - Metal Building Systems
- 13 34 23 - Fabricated Structures
- 13 34 56 - Observatories
- 13 44 00 - Modular Mezzanines
- 13030 - Special Purpose Rooms
- 13120 - Pre-Engineered Structures
- 13200 - Storage Tanks
- 21 41 00 - Storage Tanks for Fire-Suppression Water
- 21 41 16 - Elevated Storage Tanks for Fire-Suppression Water
- 21 41 26 - Underground Storage Tanks for Fire-Suppression Water
- 22 12 00 - Facility Potable-Water Storage Tanks
- 22 12 16 - Facility Elevated, Potable-Water Storage Tanks
- 22 63 19 - Gas Storage Tanks for Laboratory and Healthcare Facilities
- 23 13 00 - Facility Fuel-Storage Tanks
- 23 13 13 - Facility Underground Fuel-Oil, Storage Tanks
- 33 16 00 - Water Utility Storage Tanks
- 33 16 16 - Underground Water Utility Storage Tanks
- 33 16 19 - Elevated Water Utility Storage Tanks
- 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
- 33 56 00 - Fuel-Storage Tanks
- 33 56 16 - Underground Fuel-Storage Tanks
- 33 56 43 - Aviation Fuel-Storage Tanks
- 33 56 53 - Compressed Gases Storage Tanks