Tenn. Comp. R. & Regs. 0400-20-05-.54

Current through October 22, 2024

Section 0400-20-05-.54 - PLANNED SPECIAL EXPOSURES

(1) A licensee or registrant may authorize an adult worker to receive doses in addition to the doses received under the limits specified in Rule 0400-20-05-.50. Additional doses are allowed only if the following conditions are satisfied:

(a) The additional doses are accounted for separately from the doses received under the limits in Rule 0400-20-05-.50.

(b) The licensee or registrant authorizes a planned special exposure only in an exceptional situation when alternatives that might avoid the dose estimated to result from the planned special exposure are unavailable or impractical.

(c) The licensee or registrant (and employer if different from the licensee or registrant) gives specific written authorization before the planned special exposure occurs.

(d) Before a planned special exposure, the licensee or registrant ensures that the individuals involved are:

1. Informed of the purpose of the planned operation;

2. Informed of the estimated doses and associated potential risks and specific radiation levels or other conditions that might be involved in performing the task; and

3. Instructed in the measures to be taken to keep the dose ALARA considering other risks that may be present.

(e) Prior to permitting an individual to participate in a planned special exposure, the licensee or registrant ascertains prior doses during the lifetime of the individual for each individual involved, as required by paragraph (2) of Rule 0400-20-05-.133.

(f) Subject to paragraph (2) of Rule 0400-20-05-.50 the licensee or registrant does not authorize a planned special exposure that would cause an individual to receive a dose from all planned special exposures and all doses in excess of the limits to exceed:

1. The numerical values of any of the dose limits in paragraph (1) of Rule 0400-20-05-.50 in any year; and

2. Five times the annual dose limits in paragraph (1) of Rule 0400-20-05-.50 during the individual's lifetime.

(g) The licensee or registrant maintains records of the conduct of a planned special exposure in accordance with Rule 0400-20-05-.134 and submits a written report in accordance with Rule 0400-20-05-.144.

(h) The licensee or registrant records in the individual's record the best estimate of the dose resulting from the planned special exposure. The dose from planned special exposures is not to be considered in controlling future occupational dose of the individual under paragraph (1) of Rule 0400-20-05-.50 but is to be included in evaluations required by subparagraphs (1)(e) and (f) of this rule.

(i) The licensee or registrant gives the individual written notice of the estimated dose within 30 days after the date of the planned special exposure.

Tenn. Comp. R. & Regs. 0400-20-05-.54

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.