| CLASS |
TRADE |
|
A
| GENERAL ENGINEERING CONTRACTOR |
|
B
| GENERAL BUILDING CONTRACTOR |
|
C-5
| FRAMING AND ROUGH CARPENTRY CONTRACTOR |
|
C10
| ELECTRICAL |
|
C20
| WARM-AIR HEATING, VENTILATING AND AIR-CONDITIONING CONTRACTOR |
|
C36
| PLUMBING CONTRACTOR |
|
C38
| REFRIGERATION CONTRACTOR |