105 CMR 120.222
Compliance with Dose Limits for Individual Members of the Public
(A) The licensee or registrant shall make or cause to be made surveys of radiation levels in
unrestricted areas and radioactive materials in effluents released to unrestricted areas to demon-
strate compliance with the dose limits for individual members of the public in 105 CMR
120.221.
(B) A licensee or registrant shall show compliance with the annual dose limit in 105 CMR
120.221 by:
(1) demonstrating by measurement or calculation that the total effective dose equivalent to
the individual likely to receive the highest dose from the licensed or registered operation does
not exceed the annual dose limit; or,
(2) demonstrating that:
(a) the annual average concentrations of radioactive material released in gaseous and
liquid effluents at the boundary of the unrestricted area do not exceed the values specified
in 105 CMR 120.296: Appendix B, Table II; and,
(b) if an individual were continuously present in an unrestricted area, the dose from
external sources would not exceed 0.002 rem (0.02 millisievert) in an hour and 0.05 rem
(0.5 millisievert) in a year.
(C) Upon approval from the Agency, the licensee may adjust the effluent concentration values
in 105 CMR 120.296: Appendix B, Table II, for members of the public, to take into account the
actual physical and chemical characteristics of the effluents, such as, aerosol size distribution,
solubility, density, radioactive decay equilibrium, and chemical form.