DHS 157.71(17)(b)2.2. The number and activity of sources returned to storage, the time and date they were returned to storage and the name of the person who returned them from storage. DHS 157.71(17)(c)(c) For permanent implants, the record shall include all of the following: DHS 157.71(17)(c)1.1. The number and activity of sources removed from storage, the date they were removed from storage and the name of the person who removed them from storage. DHS 157.71(17)(c)2.2. The number and activity of sources returned to storage, the date they were returned to storage and the name of the person who returned them to storage. DHS 157.71(17)(c)3.3. The number and activity of sources permanently implanted in the patient or human research subject. DHS 157.71(18)(18) Records of calibrations on brachytherapy sources. A licensee shall maintain a record of the calibrations on brachytherapy sources required by s. DHS 157.65 (6) for 3 years after the last use of the source. The record shall include the date of the calibration, the manufacturer’s name, model number and serial number for the source and instruments used to calibrate the source, the source output or activity, source positioning accuracy within applicators and the signature of the authorized medical physicist. DHS 157.71(19)(19) Records of installation, maintenance, adjustment and repair. A licensee shall retain a record of the installation, maintenance, adjustment and repair of remote afterloader units, teletherapy units and gamma stereotactic units as required by s. DHS 157.67 (3) for 3 years. For each installation, maintenance, adjustment and repair, the record shall include the date, description of the service and names of the persons who performed the work. DHS 157.71(20)(a)(a) A licensee shall retain a record of the calibration, intercomparison and comparisons of its dosimetry equipment done under s. DHS 157.67 (6) for the duration of the license. DHS 157.71(20)(b)(b) For each calibration, intercomparison or comparison, the record shall include all of the following: DHS 157.71(20)(b)2.2. The model numbers and serial numbers of the instruments that were calibrated, intercompared or compared. DHS 157.71(20)(b)3.3. The correction factor that was determined from the calibration or comparison or the apparent correction factor that was determined from an intercomparison. DHS 157.71(20)(b)4.4. The names of the persons who performed the calibration, intercomparison or comparison. DHS 157.71(21)(21) Records of teletherapy, remote afterloader and gamma stereotactic radiosurgery full calibrations. DHS 157.71(21)(a)(a) A licensee shall maintain a record of the teletherapy, remote afterloader and gamma stereotactic radiosurgery full calibrations required by s. DHS 157.67 (7) to (9) for 3 years. DHS 157.71(21)(b)2.2. The manufacturer’s name, model number and serial number for the teletherapy, remote afterloader and gamma stereotactic radiosurgery unit, source and instruments used to calibrate the unit. DHS 157.71(21)(b)4.4. The results of the autoradiograph required for low dose-rate remote afterloader units. DHS 157.71(21)(b)5.5. The signature of the authorized medical physicist who performed the full calibration. DHS 157.71(22)(22) Records of periodic spot-checks for teletherapy units. DHS 157.71(22)(b)2.2. The manufacturer’s name, model number and serial number for the teletherapy unit, source and instrument used to measure the output of the teletherapy unit.