According to CLIA, there are 5 different positions needed for an accredited high complexity lab:
- Lab Director / Medical Director
- Technical Supervisor
- Clinical Consultant
- General Supervisor
- Testing Personnel
These positions and their responsibilities vary by state. Usually, different positions can be filled by the same person. All these individuals do not need to be physically present in the lab at the same time. Many labs operate with only the lab technician onsite.
You can find the detailed criteria as provided by CLIA here.