| Color | Image | For |
| Yellow |  | Labour |
| Green |  | Safety Officer, Medical Officer |
| Red |  | Firefighters |
| White |  | Manager, Enginneer, Supervisor, Foreman |
| Grey |  | Site Visitor |
| Blue |  | Electricians and Technical Operators |
| Pink |  | Female Worker |
| Brown |  | Welders and workers with high heat application |
| Purple |  | Engineers & supervisors hired by the civil construction contractor |
| Orange |  | Road Crew |