(1) Before the first medical use of a brachytherapy source on or after March 9, 2006, a licensee shall have:

(a) Determined the source output or activity using a dosimetry system that meets the requirements of WAC 246-240-366(1);

(b) Determined source positioning accuracy within applicators; and

(c) Used published protocols currently accepted by nationally recognized bodies to meet the requirements of (a) and (b) of this subsection.

(2) A licensee may use measurements provided by the source manufacturer or by a calibration laboratory accredited by the American Association of Physicists in Medicine that are made in accordance with subsection (1) of this section.

(3) A licensee shall mathematically correct the outputs or activities determined in subsection (1) of this section for physical decay at intervals consistent with one percent physical decay.

(4) A licensee shall retain a record of each calibration in accordance with WAC 246-240-599.