- Computer Operator
- Computer Operator
- Computer Peripheral Equipment Operator
- Computer Programmer
- Computer Programmer (Professional or Kindred)
- Concierge
- Concrete Finisher
- Concrete Finisher
- Concrete Pump Operator
- Concreter
- Concretor
- Construction Assembly and Installation Operative
- Construction Boilermaker
- Construction Craft Laborer
- Construction Craft Laborer (HY)
- Construction Craft Worker
- Construction Craft Worker
- Construction Craft Worker
- Construction Design and Build Technician
- Construction Driver