La. Admin. Code tit. 33 § XV-421

Current through Register Vol. 50, No. 9, September 20, 2024

Section XV-421 - Radiation Dose Limits for Individual Members of the Public

A. Each licensee or registrant shall conduct operations so that:

1. except as provided in Paragraph A.3 of this Section, the total effective dose equivalent (TEDE) to individual members of the public from the licensed or registered operation does not exceed 1 mSv (0.1 rem) in a year, exclusive of the dose contribution from background radiation, any medical administration the individual has received, voluntary participation in medical research programs, exposure to individuals administered radioactive material and released in accordance with LAC 33:XV.725, and the licensee's or registrant's disposal of radioactive material into sanitary sewerage in accordance with LAC 33:XV.462³;

2. the dose in any unrestricted area from external sources, exclusive of the dose contributions from individuals administered radioactive material and released in accordance with LAC 33:XV.725, does not exceed 0.02 mSv (0.002 rem) in any one hour; and

3. the TEDE to individual members of the public from infrequent exposure to radiation from radiation machines does not exceed 5mSv (0.5 rem).

B. If the licensee or registrant permits members of the public to have access to controlled areas, the radiation dose limits for members of the public continue to apply to those individuals.

C. A licensee, registrant, or an applicant for a license or registration may apply for prior department authorization to operate up to an annual dose limit for an individual member of the public of 5 mSv (0.5 rem). This application shall include the following information:

1. demonstration of the need for and the expected duration of operations in excess of the limit in LAC 33:XV.421.A; and

2. the licensee's or registrant's program to assess and control dose within the 5 mSv (0.5 rem) annual limit; and

3. the procedures to be followed to maintain the dose ALARA.

D. In addition to the requirements of this Chapter, a licensee or registrant subject to the provisions of the U.S. Environmental Protection Agency's generally applicable environmental radiation standards in 40 CFR Part 190 shall comply with those standards.

E. The department may impose additional restrictions on radiation levels in unrestricted areas and on the total quantity of radionuclides that a licensee or registrant may release in effluents in order to restrict the collective dose.

F. Each licensee or registrant shall conduct operations so that, notwithstanding Paragraph A.1 of this Section, a licensee or registrant may permit a visitor to an individual who cannot be released, under LAC 33:XV.725, to receive a radiation dose greater than 0.1 rem (1 mSv) if:

1. the radiation dose received does not exceed 0.5 rem (5 mSv); and

2. the authorized user, as defined in LAC 33:XV.102, has determined before the visit that it is appropriate.

³ Retrofit shall not be required for locations within facilities where only radiation machines existed prior to January 1, 1994, and met the previous requirements of 5 mSv (0.5 rem) in a year.

La. Admin. Code tit. 33, § XV-421

Promulgated by the Department of Environmental Quality, Nuclear Energy Division, LR 13:569 (October 1987), amended by the Office of Air Quality and Radiation Protection, Radiation Protection Division, LR 19:1421 (November 1993), LR 22:970 (October 1996), LR 24:2095 (November 1998), repromulgated LR 24:2243 (December 1998), amended by the Office of Environmental Assessment, Environmental Planning Division, LR 26:2576 (November 2000), amended by the Office of Environmental Assessment, LR 31:48 (January 2005), amended by the Office of the Secretary, Legal Affairs Division, LR 32:811 (May 2006).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2001 et seq.