(1) A licensee shall maintain a record of the calibrations of brachytherapy sources required by WAC 246-240-269 for three years after the last use of the source.

(2) The record must include:

(a) The date of the calibration;

(b) The manufacturer's name, model number, and serial number for the source and the instruments used to calibrate the source;

(c) The source output or activity;

(d) The source positioning accuracy within the applicators; and

(e) The name of the individual, the source manufacturer, or the calibration laboratory that performed the calibration.