Chapter DHS 157

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) (20) Records of dosimetry equipment.

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)1. 1. The date.

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) (b) The record required under par. (a) shall include all of the following:

DHS 157.71(21)(b)1. 1. The date of the calibration.

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)3. 3. The results and an assessment of the full calibrations.

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)(a) (a) A licensee shall retain a record of each periodic spot-check for teletherapy units required by s. DHS 157.67 (10) for 3 years.

DHS 157.71(22)(b) (b) The record required under par. (a) shall include all of the following:

DHS 157.71(22)(b)1. 1. The date of the spot-check.

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.

DHS 157.71(22)(b)3. 3. An assessment of timer linearity and constancy.

DHS 157.71(22)(b)4. 4. The calculated on-off error.

DHS 157.71(22)(b)5. 5. A determination of the coincidence of the radiation field and the field indicated by the light beam localizing device.

DHS 157.71(22)(b)6. 6. The determined accuracy of each distance measuring and localization device.

DHS 157.71(22)(b)7. 7. The difference between the anticipated output and the measured output.

DHS 157.71(22)(b)8. 8. Notations indicating the operability of each entrance door electrical interlock, each electrical or mechanical stop, each source exposure indicator light and the viewing and intercom system and doors.

DHS 157.71(22)(b)9. 9. The name of the person who performed the periodic spot-check and the signature of the authorized medical physicist who reviewed the record of the spot-check.

DHS 157.71(23) (23) Records of periodic spot-checks for remote afterloader units.

DHS 157.71(23)(a) (a) A licensee shall retain a record of each spot-check for remote afterloader units required by s. DHS 157.67 (11) for 3 years.

DHS 157.71(23)(b) (b) The record required under par. (a) shall include all of the following, as applicable:

DHS 157.71(23)(b)1. 1. The date of the spot-check.

DHS 157.71(23)(b)2. 2. The manufacturer’s name, model number and serial number for the remote afterloader unit and source.

DHS 157.71(23)(b)3. 3. An assessment of timer accuracy.

DHS 157.71(23)(b)4. 4. Notations indicating the operability of each entrance door electrical interlock, radiation monitors, source exposure indicator lights, viewing and intercom systems and clock and decayed source activity in the unit’s computer.

DHS 157.71(23)(b)5. 5. The name of the person who performed the periodic spot-check and the signature of the authorized medical physicist who reviewed the record of the spot-check.

DHS 157.71(24) (24) Records of periodic spot-checks for gamma stereotactic radiosurgery units.

DHS 157.71(24)(a) (a) A licensee shall retain a record of each spot-check for gamma stereotactic radiosurgery units required by s. DHS 157.67 (12) for 3 years.

DHS 157.71(24)(b) (b) The record required under par. (a) shall include all of the following:

DHS 157.71(24)(b)1. 1. The date of the spot-check.

DHS 157.71(24)(b)2. 2. The manufacturer’s name, model number and serial number for the gamma stereotactic radiosurgery unit and the instrument used to measure the output of the unit.

DHS 157.71(24)(b)3. 3. An assessment of timer linearity and accuracy.

DHS 157.71(24)(b)4. 4. The calculated on-off error.

DHS 157.71(24)(b)5. 5. A determination of trunnion centricity.

DHS 157.71(24)(b)6. 6. The difference between the anticipated output and the measured output.

DHS 157.71(24)(b)7. 7. An assessment of source output against computer calculations.

DHS 157.71(24)(b)8. 8. Notations indicating the operability of radiation monitors, helmet microswitches, emergency timing circuits, emergency off buttons, electrical interlocks, source exposure indicator lights, viewing and intercom systems, timer termination, treatment table retraction mechanism and stereotactic frames and localizing devices.

DHS 157.71(24)(b)9. 9. The name of the person who performed the periodic spot-check and the signature of the authorized medical physicist who reviewed the record of the spot-check.

DHS 157.71(25) (25) Records of additional technical requirements for mobile remote afterloader units.

DHS 157.71(25)(a) (a) A licensee shall retain a record of each check for mobile remote afterloader units required by s. DHS 157.67 (13) for 3 years.

DHS 157.71(25)(b) (b) The record required under par. (a) shall include all the following:

DHS 157.71(25)(b)1. 1. The date of the check.

DHS 157.71(25)(b)2. 2. The manufacturer’s name, model number and serial number of the remote afterloader unit.

DHS 157.71(25)(b)3. 3. Notations accounting for all sources before the licensee departs from a facility.

DHS 157.71(25)(b)4. 4. Notations indicating the operability of each entrance door electrical interlock, radiation monitors, source exposure indicator lights, viewing and intercom system, applicators and source transfer tubes and source positioning accuracy.

DHS 157.71(25)(b)5. 5. The signature of the person who performed the check.

DHS 157.71(26) (26) Records of surveys of therapeutic treatment units.

DHS 157.71(26)(a) (a) A licensee shall maintain a record of radiation surveys of treatment units made under s. DHS 157.67 (14) for the duration of use of the unit.

DHS 157.71(26)(b) (b) The record required under par. (a) shall include all the following:

DHS 157.71(26)(b)1. 1. The date of the measurements.

DHS 157.71(26)(b)2. 2. The manufacturer’s name, model number and serial number of the treatment unit, source and instrument used to measure radiation levels.

DHS 157.71(26)(b)3. 3. Each dose rate measured around the source while the unit is in the off position and the average of all measurements.

DHS 157.71(26)(b)4. 4. The signature of the person who performed the test.

DHS 157.71(27) (27) Records of 5-year inspection for teletherapy and gamma stereotactic radiosurgery units.

DHS 157.71(27)(a) (a) A licensee shall maintain a record of the 5-year inspections for teletherapy and gamma stereotactic radiosurgery units required by s. DHS 157.67 (15) for the duration of use of the unit.

DHS 157.71(27)(b) (b) The record required under par. (a) shall contain all the following:

DHS 157.71(27)(b)1. 1. The inspector’s radioactive materials license number.

DHS 157.71(27)(b)2. 2. The date of inspection.

DHS 157.71(27)(b)3. 3. The manufacturer’s name and model number and serial number of both the treatment unit and source.

DHS 157.71(27)(b)4. 4. A list of components inspected and serviced, and the type of service.

DHS 157.71(27)(b)5. 5. The signature of the inspector.

DHS 157.71(28) (28) Records of decay of strontium-90 sources for ophthalmic treatments.

DHS 157.71(28)(a) (a) A licensee shall maintain a record of the activity of a strontium-90 source required by s. DHS 157.65 (6) for the life of the source.

DHS 157.71(28)(b) (b) The record required under par. (a) shall include both of the following:

DHS 157.71(28)(b)1. 1. The initial activity of the source and date.

DHS 157.71(28)(b)2. 2. For each decay calculation, the date and the source activity as determined under s. DHS 157.65 (6).

DHS 157.71 History History: CR 01-108: cr. Register July 2002 No. 559, eff. — see Note at the start of the chapter; CR 06-021: r. and recr. (14) Register October 2006 No. 610, eff. 11-1-06; CR 16-078: am. (8) Register January 2018 No. 745, eff. 2-1-18; CR 22-015: cr. (1) (c), am. (4) (b) 3., (5) (c) Register June 2023 No. 810, eff. 7-1-23.

DHS 157.72 DHS 157.72 Reports.

DHS 157.72(1) (1) Reports of medical events.

DHS 157.72(1)(a) (a) A licensee shall report to the department any event, except for events that result from intervention by a patient or human research subject, in which the administration of radioactive material or resulting radiation, except for permanent implant brachytherapy, results in any of the following:

DHS 157.72(1)(a)1. 1. A dose that differs from the prescribed dose or dose that would have resulted from the prescribed dosage by more than 0.05 Sv (5 rem) effective dose equivalent, 0.5 Sv (50 rem) to an organ or tissue or 0.5 Sv (50 rem) shallow dose equivalent to the skin and to which any of the following apply:

DHS 157.72(1)(a)1.a. a. The total dose delivered differs from the prescribed dose by 20% or more.

DHS 157.72(1)(a)1.b. b. The total dosage delivered differs from the prescribed dosage by 20% or more or falls outside the prescribed dosage range.

DHS 157.72(1)(a)1.c. c. The fractionated dose delivered differs from the prescribed dose, for a single fraction, by 50% or more.

DHS 157.72(1)(a)2. 2. A dose that exceeds 0.05 Sv (5 rem) effective dose equivalent, 0.5 Sv (50 rem) to an organ or tissue or 0.5 Sv (50 rem) shallow dose equivalent to the skin from any of the following:

DHS 157.72(1)(a)2.a. a. An administration of a wrong pharmaceutical.

DHS 157.72(1)(a)2.b. b. An administration of a radioactive drug containing radioactive material by the wrong route of administration.

DHS 157.72(1)(a)2.c. c. An administration of a dose or dosage to the wrong patient or human research subject.

DHS 157.72(1)(a)2.d. d. An administration of a dose delivered by the wrong mode of treatment.