| PSC | Description |
|---|---|
| Y1AA | Construction of Office buildings |
| Y1AB | Construction of Conference space and facilities |
| Y1AZ | Construction of Other administrative facilities and service buildings |
| Y1BA | Construction of Air traffic control towers |
| Y1BB | Construction of Air traffic control training facilities |
| Y1BC | Construction of Radar and navigational facilities |
| Y1BD | Construction of Airport runways and taxiways |
| Y1BE | Construction of Airport terminals |
| Y1BF | Construction of Missile system facilities |
| Y1BG | Construction of Electronic and communications facilities |
| Y1BZ | Construction of Other airfield structures |
| Y1CA | Construction of Schools |
| Y1CZ | Construction of Other educational buildings |
| Y1DA | Construction of Hospitals and infirmaries |
| Y1DB | Construction of Laboratories and clinics |
| Y1DZ | Construction of Other hospital buildings |
| Y1EA | Construction of Ammunition facilities |
| Y1EB | Construction of Maintenance buildings |
| Y1EC | Construction of Production buildings |
| Y1ED | Construction of Ship construction and repair facilities |
| Y1EE | Construction of Tank automotive facilities |
| Y1EZ | Construction of Other industrial buildings |
| Y1FA | Construction of Family housing facilities |
| Y1FB | Construction of Recreational buildings |
| Y1FC | Construction of Troop housing facilities |
| Y1FD | Construction of Dining facilities |
| Y1FE | Construction of Religious facilities |
| Y1FF | Construction of Penal facilities |
| Y1FZ | Construction of Other residential buildings |
| Y1GA | Construction of Ammunition storage buildings |
| Y1GB | Construction of Food or grain storage buildings |
| Y1GC | Construction of Fuel storage buildings |
| Y1GD | Construction of Open storage facilities |
| Y1GZ | Construction of Other warehouse buildings |
| Y1HA | Construction of Government-owned contractor-operated (GOCO) R&D fac |
| Y1HB | Construction of Government-owned government-operated (GOGO) R&D fac |
| Y1HC | Construction of GOCO environmental laboratories |
| Y1HZ | Construction of GOGO environmental laboratories |
| Y1JA | Construction of Museums and exhibition buildings |
| Y1JB | Construction of Testing and measurement buildings |
| Y1JZ | Construction of Miscellaneous buildings |
| Y1KA | Construction of Dams |
| Y1KB | Construction of Canals |
| Y1KC | Construction of Mine fire control facilities |
| Y1KD | Construction of Mine subsidence control facilities |
| Y1KE | Construction of Surface mine reclamation facilities |
| Y1KF | Construction of Dredging facilities |
| Y1KZ | Construction of Other conservation and development facilities |
| Y1LA | Construction of Airport service roads |
| Y1LB | Construction of Highways, roads, streets, bridges, and railways |
| Y1LC | Construction of Tunnels and subsurface structures |
| Y1LZ | Construction of Parking facilities |
| Y1MA | Construction of EPG facilities - coal |
| Y1MB | Construction of EPG facilities - gas |
| Y1MC | Construction of EPG facilities - geothermal |
| Y1MD | Construction of EPG facilities - hydro |
| Y1ME | Construction of EPG facilities - nuclear |
| Y1MF | Construction of EPG facilities - petroleum |
| Y1MG | Construction of EPG facilities - solar |
| Y1MH | Construction of EPG facilities - wind |
| Y1MZ | Construction of EPG facilities - other, including transmission |
| Y1NA | Construction of Fuel supply facilities |
| Y1NB | Construction of Heating and cooling plants |
| Y1NC | Construction of Pollution abatement and control facilities |
| Y1ND | Construction of Sewage and waste facilities |
| Y1NE | Construction of Water supply facilities |
| Y1NZ | Construction of Other utilities |
| Y1PA | Construction of Recreation facilities (non-building) |
| Y1PB | Construction of Exhibit design (non-building) |
| Y1PC | Construction of Unimproved real property (land) |
| Y1PD | Construction of Waste treatment and storage facilities |
| Y1PZ | Construction of Other non-building facilities |
| Y1QA | Construction of Restoration of real property (public or private) |
| Y111 | Construction of Office Buildings |
| Y112 | Construction of Conference Space & Facilities |
| Y119 | Construction of Other Administrative Services Buildings |
| Y121 | Construction of Air Traffic Control Towers |
| Y122 | Construction of Air Traffic Control Training Facilities |
| Y123 | Construction of Radar & Navigational Facilities |
| Y124 | Construction of Airport Runways |
| Y125 | Construction of Airport Terminals |
| Y126 | Construction of Missile System Facilities |
| Y127 | Construction of Electronic & Communications Systems Facilities |
| Y129 | Construction of Other Airfield Structures |
| Y131 | Construction of Schools |
| Y139 | Construction of Other Educational Buildings |
| Y141 | Construction of Hospitals & Infirmaries |
| Y142 | Construction of Laboratories & Clinics |
| Y149 | Construction of Other Hospital Buildings |
| Y151 | Construction of Ammunition Facilities |
| Y152 | Construction of Maintenance Buildings |
| Y153 | Construction of Production Buildings |
| Y154 | Construction of Ship Construction & Repair Facilities |
| Y155 | Construction of Tank Automotive Facilities |
| Y159 | Construction of Other Industrial Building |
| Y161 | Construction of Family Housing Facilities |
| Y162 | Construction of Recreational Buildings |
| Y163 | Construction of Troop Housing Facilities |
| Y164 | Construction of Dining Facilities |
| Y165 | Construction of Religious Facilities |
| Y166 | Construction of Penal Facilities |
| Y169 | Construction of Other Residential Buildings |
| Y171 | Construction of Ammunition Storage Buildings |
| Y172 | Construction of Food or Grain Storage Buildings |
| Y173 | Construction of Fuel Storage Buildings |
| Y174 | Construction of Open Storage Facilities |
| Y179 | Construction of Other Warehouse Buildings |
| Y181 | Construction of R&D GOCO Facilities |
| Y182 | Construction of R&D GOGO Facilities |
| Y183 | Construction of R&D GOCO Environmental Laboratories |
| Y184 | Construction of R&D GOGO Environmental Laboratories |
| Y191 | Construction of Museum & Exhibition Buildings |
| Y192 | Construction of Testing and Measurement Buildings |
| Y199 | Construction of Misc. Buildings |
| Y211 | Construction of Dams |
| Y212 | Construction of Canals |
| Y213 | Construction of Mine Fire Control Facilities |
| Y214 | Construction of Mine Subsidence Control Facilities |
| Y215 | Construction of Surface Mine Reclamation Facilities |
| Y216 | Construction of Dredging |
| Y219 | Construction of Other Conservation Structure |
| Y221 | Construction of Airport Service Roads |
| Y222 | Construction of Highways/Roads/Bridges/Railways |
| Y223 | Construction of Tunnels & Subsurface Structures |
| Y224 | Construction of Parking Facilities |
| Y231 | Construction of Electric Power Generation - Coal |
| Y232 | Construction of Electric Power Generation - Gas |
| Y233 | Construction of Electric Power Generation - Geothermal |
| Y234 | Construction of Electric Power Generation - Hydro |
| Y235 | Construction of Electric Power Generation - Nuclear |
| Y236 | Construction of Electric Power Generation - Petroleum |
| Y237 | Construction of Electric Power Generation - Solar |
| Y239 | Construction of Electric Power Generation - Other |
| Y241 | Construction of Fuel Supply |
| Y242 | Construction of Heating & Colloing Plants |
| Y243 | Construction of Pollution Abatement and Control Facilities |
| Y244 | Construction of Sewage & Waste |
| Y245 | Construction of Water Supply Facilities |
| Y249 | Construction of Other Utilities |
| Y291 | Construction of Recreation Facilities (Non-Building) |
| Y292 | Construction of Exhibit Design (Non-Building) |
| Y293 | Construction of Unimproved Real Property (Land) |
| Y294 | Construction of Waste Treatment Storage Facilities |
| Y299 | Construction of All Other Non-Building Facilities |
| Y300 | Restoration of Real Property |
Codes in red have an end date of 09/30/11
per the Federal Procurement Data System
PSC Manual dated 10/1/2011.
Codes in blue have been added as of 10/01/11
per the Federal Procurement Data System
PSC Manual dated 10/1/2011.