| | Medical | | |
| Medical 1 | | Medical therapy | | 1 |
| Medical 2 | | Medical or dental diagnosis | | 2 |
| Medical 3 | | Nuclear medicine | | 2 |
| Medical 4 | | Medical diagnosis (excluding interventional radiology, computed tomography, and the use of unsealed radioactive material) | | 4 |
| Medical 5 | | Dental diagnosis (excluding cone beam computed tomography) | | 5 |
| Medical 6 | | Sentinel node biopsy, low-dose-rate brachytherapy, and bone densitometry | | 5 |
| | | | |
| | Non-medical | | |
| Non-medical 1 | | Industrial radiography and any non-medical practice involving high-activity radioactive material | | 1 |
| Non-medical 2 | | Production of unsealed radioactive material using a cyclotron | | 1 |
| Non-medical 3 | | Any non-medical practice involving irradiating apparatus or low-activity radioactive material or both (excluding industrial radiography and the production of unsealed radioactive material using a cyclotron) | | 2 |
| Non-medical 4 | | Any non-medical practice involving irradiating apparatus or low-activity radioactive material that is sealed radioactive material, or both (excluding industrial radiography, veterinary, well logging, and the production of unsealed radioactive material using a cyclotron) | | 3 |
| Non-medical 5 | | Veterinary diagnosis (excluding the use of radioactive material) | | 4 |
| Non-medical 6 | | Any non-medical practice involving irradiating apparatus or low-activity radioactive material that is sealed radioactive material, or both (excluding industrial radiography, veterinary, well logging, nuclear density meters, and the production of unsealed radioactive material using a cyclotron) | | 5 |