(a) Each licensee shall use the units curie, rad, and rem, including multiples and subdivisions, and shall clearly indicate the units of all quantities on records required by this subchapter. Disintegrations per minute may be indicated on records of surveys performed to determine compliance with §336.605 of this title (relating to Surface Contamination Limits for Facilities, Equipment, and Materials) and §336.364, Appendix G, of this title (relating to Acceptable Surface Contamination Levels).
(b) In the records required by this chapter, the licensee may record quantities in International System of Units (SI) units in parentheses following each of the units specified in subsection (a) of this section. However, all quantities must be recorded as stated in subsection (a) of this section.
(c) Notwithstanding the requirements of subsection (a) of this section, information on shipment manifests for wastes received at a licensed land disposal facility, as required by §336.331(h) of this title (relating to Transfer of Radioactive Material), shall be recorded in SI units (becquerel, gray, and sievert) or in SI and units as specified in subsection (a) of this section.
(d) The licensee shall make a clear distinction among the quantities entered on the records required by this subchapter, such as total effective dose equivalent, shallow-dose equivalent, lens dose equivalent, deep-dose equivalent, and committed effective dose equivalent.
(e) Each licensee shall maintain records showing the receipt, transfer, and disposal of all source material, byproduct material, or other licensed radioactive material. Each licensee shall also maintain any records and make any reports as may be required by the conditions of the license, by the rules in this chapter, or by orders of the commission. Copies of any records or reports required by the license, rules, or orders shall be submitted to the executive director or commission on request. All records and reports required by the license, rules, or orders shall be complete and accurate.
(f) The licensee shall retain each record that is required by the rules in this chapter or by license conditions for the period specified by the appropriate rule or license condition. If a retention period is not otherwise specified, each record shall be maintained until the commission terminates each pertinent license requiring the record.
(g) If there is a conflict between the commission's rules, license condition, or other written approval or authorization from the executive director pertaining to the retention period for the same type of record, the longest retention period specified takes precedence.
(h) The executive director may require the licensee to provide the commission with copies of all records prior to termination of the license.

Source Note: The provisions of this §336.341 adopted to be effective June 5, 1997, 22 TexReg 4588; amended to be effective September 3, 1998, 23 TexReg 8837; amended to be effective September 14, 2000, 25 TexReg 8989; amended to be effective August 30, 2001, 26 TexReg 6309