DHS 157.62(4)(a)(a) Any person authorized by s. DHS 157.13 (5) for medical use of radioactive material may receive, possess and use any of the following radioactive material for check, calibration, transmission and reference use: DHS 157.62(4)(a)1.1. A sealed source that does not exceed 1.11 GBq (30 mCi) that is manufactured and distributed by a person licensed under s. DHS 157.13 (4) (j) or equivalent NRC or agreement state regulations or redistributed by a person authorized to redistribute sealed sources, provided that the redistributed sealed sources are in the original packaging and shielding and are accompanied by the manufacturer’s approved instructions. DHS 157.62(4)(a)2.2. Any radioactive material with a half-life not longer than 120 days in individual amounts not to exceed 0.555 GBq (15 mCi). DHS 157.62(4)(a)3.3. Any radioactive material with a half-life longer than 120 days in individual amounts not to exceed the smaller of 7.4 MBq (200 microcuries) or 1000 times the quantities in ch. DHS 157 Appendix F. DHS 157.62(4)(b)(b) Radioactive material in sealed sources authorized by this subsection shall not be used in either of the following: DHS 157.62(4)(b)2.2. Bundled or aggregated to create activity greater than the maximum activity of any single sealed source authorization under this section. DHS 157.62(4)(c)(c) A licensee using calibration, transmission, and reference sources in accordance with the requirements in this subsection need not list these sources on a specific medical use license. DHS 157.62(5)(5) Requirements for possession of sealed sources and brachytherapy sources. DHS 157.62(5)(a)(a) A licensee in possession of any sealed source or brachytherapy source shall follow the radiation safety and handling instructions supplied by the manufacturer. DHS 157.62(5)(b)(b) A licensee in possession of a sealed source shall do both the following: DHS 157.62(5)(b)1.1. Test the source for leakage before its first use unless the licensee has a certificate from the supplier indicating that the source was tested within 6 months before transfer to the licensee. DHS 157.62(5)(b)2.2. Test the source for leakage at intervals not to exceed 6 months or at other intervals approved by the department, NRC or another agreement state in the sealed source and device registry. DHS 157.62(5)(b)3.3. Test the source for leakage at any time there is reason to suspect that the sealed source might have been damaged or might be leaking. DHS 157.62(5)(c)(c) To satisfy the leak test requirements of this section, a licensee shall measure the sample so that the leakage test may detect the presence of 185 Bq (0.005 mCi) of radioactive material on the sample. DHS 157.62(5)(e)(e) If the leakage test reveals the presence of 185 Bq (0.005 mCi) or more of removable contamination, a licensee shall do both the following: DHS 157.62(5)(e)1.1. Immediately withdraw the sealed source from use and store, dispose or cause it to be repaired under the requirements in subchs. II and III. DHS 157.62(5)(f)(f) A licensee need not perform a leakage test on any of the following sources: DHS 157.62(5)(f)1.1. A source containing only radioactive material with a half-life of less than 30 days. DHS 157.62(5)(f)3.3. A source containing 3.7 MBq (100 mCi) or less of beta or gamma-emitting material or 0.37 MBq (10 mCi) or less of alpha-emitting material. DHS 157.62(5)(f)4.4. A source stored and not being used. A licensee shall, however, test each source for leakage before any use or transfer unless it has been leakage-tested within 6 months before the date of use or transfer. DHS 157.62(5)(g)(g) A licensee in possession of sealed sources or brachytherapy sources, except for gamma stereotactic radiosurgery sources, shall conduct a semi-annual physical inventory of all such sources in its possession. A licensee shall retain each inventory record under s. DHS 157.71 (9). DHS 157.62(6)(6) Labelling of vials and syringes. Each syringe and vial that contains a radioactive drug containing radioactive material shall be labeled to identify the radioactive drug. Each syringe shield and vial shield shall also be labeled unless the label on the syringe or vial is visible when shielded.