| PSC | Description
|
| X1AA | Lease/rental Of Office Buildings |
| X1AB | Lease/rental Of Conference Space and Facilities |
| X1AZ | Lease/rental Of Other Administrative Facilities and Service Buildings |
| X1BA | Lease/rental Of Air Traffic Control Towers |
| X1BB | Lease/rental Of Air Traffic Control Training Facilities |
| X1BC | Lease/rental Of Radar and Navigational Facilities |
| X1BD | Lease/rental Of Airport Runways and Taxiways |
| X1BE | Lease/rental Of Airport Terminals |
| X1BF | Lease/rental Of Missile System Facilities |
| X1BG | Lease/rental Of Electronic and Communications Facilities |
| X1BZ | Lease/rental Of Other Airfield Structures |
| X1CA | Lease/rental Of Schools |
| X1CZ | Lease/rental Of Other Educational Buildings |
| X1DA | Lease/rental Of Hospitals and Infirmaries |
| X1DB | Lease/rental Of Laboratories and Clinics |
| X1DZ | Lease/rental Of Other Hospital Buildings |
| X1EA | Lease/rental Of Ammunition Facilities |
| X1EB | Lease/rental Of Maintenance Buildings |
| X1EC | Lease/rental Of Production Buildings |
| X1ED | Lease/rental Of Ship Construction and Repair Facilities |
| X1EE | Lease/rental Of Tank Automotive Facilities |
| X1EZ | Lease/rental Of Other Industrial Buildings |
| X1FA | Lease/rental Of Family Housing Facilities |
| X1FB | Lease/rental Of Recreational Buildings |
| X1FC | Lease/rental Of Troop Housing Facilities |
| X1FD | Lease/rental Of Dining Facilities |
| X1FE | Lease/rental Of Religious Facilities |
| X1FF | Lease/rental Of Penal Facilities |
| X1FZ | Lease/rental Of Other Residential Buildings |
| X1GA | Lease/rental Of Ammunition Storage Buildings |
| X1GB | Lease/rental Of Food Or Grain Storage Buildings |
| X1GC | Lease/rental Of Fuel Storage Buildings |
| X1GD | Lease/rental Of Open Storage Facilities |
| X1GZ | Lease/rental Of Other Warehouse Buildings |
| X1HA | Lease/rental Of Government-owned Contractor-operated (goco) R&d Facilities |
| X1HB | Lease/rental Of Government-owned Government-operated (gogo) R&d Facilities |
| X1HC | Lease/rental Of Government-owned Contractor-operated (goco) Environmental Laboratories |
| X1HZ | Lease/rental Of Government-owned Government-operated (gogo) Environmental Laboratories |
| X1JA | Lease/rental Of Museums and Exhibition Buildings |
| X1JB | Lease/rental Of Testing and Measurement Buildings |
| X1JZ | Lease/rental Of Miscellaneous Buildings |
| X1KA | Lease/rental Of Dams |
| X1KB | Lease/rental Of Canals |
| X1KC | Lease/rental Of Mine Fire Control Facilities |
| X1KD | Lease/rental Of Mine Subsidence Control Facilities |
| X1KE | Lease/rental Of Surface Mine Reclamation Facilities |
| X1KF | Lease/rental Of Dredging Facilities |
| X1KZ | Lease/rental Of Other Conservation and Development Facilities |
| X1LA | Lease/rental Of Airport Service Roads |
| X1LB | Lease/rental Of Highways, Roads, Streets, Bridges, and Railways |
| X1LC | Lease/rental Of Tunnels and Subsurface Structures |
| X1LZ | Lease/rental Of Parking Facilities |
| X1MA | Lease/rental Of Epg Facilities - Coal |
| X1MB | Lease/rental Of Epg Facilities - Gas |
| X1MC | Lease/rental Of Epg Facilities - Geothermal |
| X1MD | Lease/rental Of Epg Facilities - Hydro |
| X1ME | Lease/rental Of Epg Facilities - Nuclear |
| X1MF | Lease/rental Of Epg Facilities - Petroleum |
| X1MG | Lease/rental Of Epg Facilities - Solar |
| X1MH | Lease/rental Of Epg Facilities - Wind |
| X1MZ | Lease/rental Of Epg Facilities - Other, Including Transmission |
| X1NA | Lease/rental Of Fuel Supply Facilities |
| X1NB | Lease/rental Of Heating and Cooling Plants |
| X1NC | Lease/rental Of Pollution Abatement and Control Facilities |
| X1ND | Lease/rental Of Sewage and Waste Facilities |
| X1NE | Lease/rental Of Water Supply Facilities |
| X1NZ | Lease/rental Of Other Utilities |
| X1PA | Lease/rental Of Recreation Facilities (non-building) |
| X1PB | Lease/rental Of Exhibit Design (non-building) |
| X1PC | Lease/rental Of Unimproved Real Property (land) |
| X1PD | Lease/rental Of Waste Treatment and Storage Facilities |
| X1PZ | Lease/rental Of Other Non-building Facilities |
| X1QA | Lease/rental Of Restoration Of Real Property (public Or Private) |