| Lay Titles |
| Air Conditioning Technician |
| Air Conditioning Service Technician |
| Air and Hydronic Balancing Technician |
| Commercial Heating, Ventilation, and Air Conditioning Technician |
| Commercial Heating, Ventilation, and Air Conditioning Service Technician |
| Commercial Refrigeration Service Technician |
| Cooling Technician |
| Heating Technician |
| Heating Repair Technician |
| Heating, Ventilation, Air Conditioning, and Refrigeration Technician |
| Heating, Ventilation, Air Conditioning, and Refrigeration Service Technician |
| Heating, Ventilation, and Air Conditioning Technician |
| Heating, Ventilation, and Air Conditioning Control Technician |
| Heating, Ventilation, and Air Conditioning Maintenance Technician |
| Heating, Ventilation, and Air Conditioning Operations Technician |
| Heating, Ventilation, and Air Conditioning Service Technician |
| Oil Burner Technician |
| Oil Heat Technician |
| Refrigeration Technician |
| Refrigeration Service Technician |
| Refrigeration and Appliance Repair Technician |
| Renewable Energy Technician |
| Service Technician |
| Solar Panel Technician |
| Transportation Refrigeration Technician |
License
