Except as specifically provided in other Parts of this rule, Part D applies to persons licensed or registered by the Agency to receive, possess, use, transfer, or dispose of sources of radiation. The limits in Part D do not apply to doses due to background radiation, to exposure of patients to radiation for the purpose of medical diagnosis or therapy, to exposure from individuals administered radioactive material and released in accordance with Part G, or to voluntary participation in medical research programs.
10-144 C.M.R. ch. 220, § D-A-1002