Section 0400-20-05-.111 - POSTING REQUIREMENTS(1) The licensee or registrant shall post each radiation area with a conspicuous sign or signs bearing the radiation symbol and the words "CAUTION, RADIATION AREA."(2) The licensee or registrant shall post each high radiation area with a conspicuous sign or signs bearing the radiation symbol and the words "CAUTION, HIGH RADIATION AREA" or "DANGER, HIGH RADIATION AREA."(3) The licensee or registrant shall post each very high radiation area with a conspicuous sign or signs bearing the radiation symbol and words "GRAVE DANGER, VERY HIGH RADIATION AREA."(4) The licensee shall post each airborne radioactivity area with a conspicuous sign or signs bearing the radiation symbol and the words "CAUTION, AIRBORNE RADIOACTIVITY AREA" or "DANGER, AIRBORNE RADIOACTIVITY AREA."(5) Each area where radioactive material is used or stored in amounts exceeding 10 times that specified in Schedule RHS 8-31 shall be posted by the licensee with conspicuous sign(s) bearing the radiation symbol and the words "CAUTION, RADIOACTIVE MATERIAL(S)" or "DANGER, RADIOACTIVE MATERIAL(S)."(6) A licensee is not required to post caution signs in areas or rooms containing radioactive materials for periods of less than 8 hours, if each of the following conditions is met:(a) The materials are constantly attended during these periods by an individual who takes the precautions necessary to prevent the exposure of individuals to radiation or radioactive materials in excess of the limits established in this chapter; and(b) The area or room is subject to the licensee's control.(7) Rooms or other areas in hospitals that are occupied by patients are not required to be posted with caution signs pursuant to this rule provided that:(a) The patient is being treated with sealed sources or has been treated with unsealed radioactive material in quantities less than 30 millicuries (110 MBq) or the measured dose rate at 1 meter from the patient is less than 0.005 rem (0.05 mSv) per hour; and(b) There are personnel in attendance who will take the necessary precautions to: 1. Prevent the exposure of individuals to radiation and radioactive material in excess of these Basic Standards; and2. Operate within the ALARA provisions of the licensee's radiation protection program.(8) A room or area is not required to be posted with a caution sign because of the presence of a sealed source provided the radiation level at 30 centimeters from the surface of the source container or housing does not exceed 0.005 rem (0.05 mSv) per hour.(9) A room containing medical or dental diagnostic x-ray equipment, restricted to use within the room, need not be posted as noted in paragraphs (1) and (2) of this rule provided: (a) The registrant exercises control to ensure the patient will be the only person exposed to radiation levels exceeding the limits in these standards; and(b) Each room entrance is identified as an "X-ray Room".(10) Provided a room or area is not otherwise required to be posted under paragraphs (1) or (2) of this rule, a room or area will not have to be so posted because mobile or portable medical or dental diagnostic x-ray equipment is intermittently used between rooms and/or areas.(11) All radiation machines shall be clearly labeled at the control panel near the switch that energizes the apparatus, and at any remote switch that energize the apparatus, with the words "CAUTION - RADIATION - THIS EQUIPMENT PRODUCES RADIATION WHEN ENERGIZED" or "DANGER - RADIATION - THIS EQUIPMENT PRODUCES RADIATION WHEN ENERGIZED"Tenn. Comp. R. & Regs. 0400-20-05-.111
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.