US lawMassachusettsRegulations105 CMR — Department of Public Health105 CMR 120.00 — The control of radiation120.050105 CMR 120.050PHYSICAL PROTECTION OF CATEGORY 1 AND CATEGORY 2 QUANTITIES OFYear: 2026Length: 4 wordsOfficial source RADIOACTIVE MATERIAL GENERAL PROVISIONSPrevious105 CMR 120.040Next105 CMR 120.051