10 CFR §35.2630

1. (a)A licensee shall retain a record of the calibration, intercomparison, and comparisons of its dosimetry equipment done in accordance with § 35.630 for the duration of the license.
2. (b)For each calibration, intercomparison, or comparison, the record must include—
   1. (1)The date;
   2. (2)The manufacturer's name, model numbers and serial numbers of the instruments that were calibrated, intercompared, or compared as required by paragraphs (a) and (b) of § 35.630;
   3. (3)The correction factor that was determined from the calibration or comparison or the apparent correction factor that was determined from an intercomparison; and
   4. (4)The names of the individuals who performed the calibration, intercomparison, or comparison.