| PSC | Description
|
| C111 | Bldgs & fac / admin & svc bldgs |
| C112 | Bldgs & fac / airfield, com & msl F |
| C113 | Bldgs & fac / educational bldgs |
| C114 | Bldgs & fac / hospital buildings |
| C115 | Bldgs & fac / industrial bldgs |
| C116 | Bldgs & fac / residential bldgs |
| C117 | Bldgs & fac / warehouse bldgs |
| C118 | Bldgs & fac / R&D facilities |
| C119 | Bldgs & fac / other buildings |
| C121 | Non-bldg / conservation & dev |
| C122 | Non-bldg / hwys-roads-bridges |
| C123 | Non-bldg / electric power genr |
| C124 | Non-bldg / utilities |
| C129 | Non-bldg / other |
| C130 | Restoration |
| C211 | A/E - non contruct - general |
| C212 | A/E - drafting engineering |
| C213 | A/E - inspect - non contruct |
| C214 | A/E - management engineering |
| C215 | A/E - production engineering |
| C216 | A/E - marine engineering |
| C217 | A/E - mapping |
| C218 | A/E - surveying |
| C219 | Other architects & engin gen |