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Recommended occupational dose limits by International Commission on Radiological Protection (ICRP).
| TISSUE INJURY | OCCUPATIONAL DOSE LIMITS/YEAR | |
| whole body | 20 mSv | 2 rem |
| Lens of the eye | 150 mSv | 15 rem |
| Skin, hands, feet, and other organs | 500 mSv | 50 rem |
