A licensee may use radioactive material or a radiation source approved for medical use which is not specifically addressed in WAC 246-240-251 through 246-240-399 (inclusive) if:

(1) The applicant or licensee has submitted the information required by WAC 246-240-019; and

(2) The applicant or licensee has received written approval from the department in a license or license amendment and uses the material in accordance with the regulations and specific conditions the department considers necessary for the medical use of the material.