| Civil Construction - 4 Years |
| Commerical Construction - 4 Years |
| Concrete Construction - 5 Years |
| Demolition - 5 Years |
| Petrochemical/Oil Refinery Construction - 6 Years |
| Petrochemical/Oil Refinery Maintenance - 6 Years |
| Pipeline Construction - 6 Years |
| Solar Farm Construction - 6 Years |
| Steel Erection - 6 Years |