N. C. Regulations for Protection Against Radiation

15A NCAC 11 .1614          MONITORING OF EXTERNAL AND INTERNAL OCCUPATIONAL DOSE

Each licensee or registrant shall monitor exposures to radiation and radioactive material at levels sufficient to demonstrate compliance with the occupational dose limits of this Section.  As a minimum:

(1)           Each licensee or registrant shall monitor occupational exposure to radiation and shall supply and require the use of individual monitoring devices by:

(a)           adults likely to receive, in one year from sources external to the body, a dose in excess of 10 percent of the limits in Rule .1604(a) of this Section;

(b)           minors likely to receive, in one year, from sources of radiation, a deep dose equivalent in excess of 0.1 rem (1 mSv), a lens dose equivalent in excess of 0.15 rem (1.5 mSv), or a shallow dose equivalent in excess of 0.5 rem (5 mSv);

(c)           declared pregnant women likely to receive, during the entire pregnancy, from sources of radiation external to the body, a deep dose equivalent in excess of 0.1 rem (1 mSv); and

(d)           individuals entering a high or very high radiation area.

(2)           Each licensee shall monitor the occupational intake of radioactive material by and assess the committed effective dose equivalent to:

(a)           adults likely to receive, in one year, an intake in excess of 10 percent of the applicable ALI(s) in Table 1, Columns 1 and 2, of Appendix B to 10 CFR 20.1001 - 20.2402; and

(b)           minors likely to receive, in one year, a committed effective dose equivalent in excess of 0.1 rem (1mSv); and

(c)           declared pregnant women likely to receive, during the entire pregnancy, a committed effective dose equivalent in excess of 0.1 rem (1mSv).

History Note:        Authority G.S. 104E-7(a)(2);

Eff. January 1, 1994;

Amended Eff. January 1, 2005; August 1, 2002.

NC Radiation Protection, 1645 Mail Service Center,
Raleigh, NC  27699-1645  919-571-4141  Fax  919-571-4148