| PSC | Description
|
| S111 | Utils/gas |
| S112 | Utils/electricty |
| S113 | Utils/telephone and-or comm |
| S114 | Utils/water |
| S119 | Other utils |
| S201 | Custodial - janitorial |
| S202 | Fire protection |
| S203 | Food service |
| S204 | Fueling service |
| S205 | Trash/garbage collection |
| S206 | Guard svcs |
| S207 | Insect & rodent cont |
| S208 | Landscaping - groundskeeping |
| S209 | Laundry & dry cleaning |
| S211 | Surveillance svcs |
| S212 | Solid fuel handling svcs |
| S213 | Messenger svcs |
| S214 | Carpet laying and cleaning |
| S215 | Warehousing & storage services |
| S216 | Facilities operations support svcs |
| S217 | Interior plantscaping |
| S218 | Snow removal/salt service |
| S219 | Asbestos removal |
| S220 | Travel agent services |
| S221 | Hazardous waste removal |
| S222 | Waste trmt & storage |
| S299 | Other housekeeping svcs |