Section 0400-20-05-.80 - CONTROL OF ACCESS TO HIGH RADIATION AREA REQUIREMENTS(1) The licensee or registrant shall ensure that each access to a high radiation area has one or more of the following control features: (a) A device that, upon an attempt at entry and before any opening into the area occurs, reduces the level of radiation. Before an opening occurs the level of radiation shall be below that at which an individual could receive a deep-dose equivalent of 0.1 rem (1 mSv) in 1 hour at 30 centimeters from the source of radiation or any surface that the radiation penetrates;(b) A device that emits a conspicuously visible or audible alarm so the individual entering the high radiation area and the supervisor of the activity are made aware of the entry; or(c) Locked entryways, except when access to the area is required, with positive control over each individual entry. 2 All of the occupational doses in Rule 0400-20-05-.50 continue to be applicable to the declared pregnant woman as long as the embryo/fetus dose equivalent limit is not exceeded.
(2) In the case of a high radiation area established for a period of 30 days or less, the licensee or registrant may substitute continuous direct or electronic surveillance to prevent unauthorized entry for the controls required in paragraph (1) of this rule.(3) A licensee or registrant may apply to the Division for approval of alternative methods for controlling access to high radiation areas.(4) No control required by paragraphs (1) through (3) of this rule shall prevent individuals from leaving a high radiation area.(5) Control is not required for each entrance or access point to a room or other area that is a high radiation area solely because of the presence of radioactive materials prepared for transport and packaged and labeled in accordance with the regulations of the U.S. Department of Transportation provided that:(a) The packages do not remain in the area longer than 3 days; and(b) The dose rate at 1 meter from the external surface of any package does not exceed 0.01 rem (0.1 mSv) per hour.(6) Control of areas in hospitals is not required solely because of the presence of patients containing radioactive material, provided:(a) There are personnel in attendance who will take necessary precautions to prevent exposure of individuals to radiation or radioactive material in excess of the limits in these standards; and(b) The licensee operates within the ALARA provisions of its radiation protection program.Tenn. Comp. R. & Regs. 0400-20-05-.80
Original rule filed February 22, 2012; effective May 22, 2012.Authority: T.C.A. §§ 68-202-201 et seq., and 4-5-201 et seq.