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State of California-Health and Welfare Ag Department of Health Services Page 5 of 7 pages RADIOACTIVE MATERIAL LICENSE License Number: 1276-39 Amendment Number: 77 18. The licensee shall conduct a physical inventory every six months to account for all sealed sources and/or devices received and possessed under the license. Records of the inventories shall be maintained for inspection, and may be disposed of following Department inspection. 19. The licensee is authorized to hold radioactive materials with a physical half-life of less than 65 days for decay in storage before disposal in ordinary trash provided: (a) Radioactive waste to be disposed of in this manner shall be held for decay in storage for at least 10 half-lives. (b) Before disposal as normal waste, radioactive waste shall be surveyed to determine that its radioactivity cannot be distinguished from background. All radiation labels shall be removed or obliterated. 20. The licensee may use any commercially available device, acceptable to the U.S.Nuclear Regulatory Commission, an Agreement State or a Licensing State, for doing linearity tests of its dose calibrator provided the procedures described by the manufacturer of the linearity device are followed. 21. Nuclear medicine technology procedures shall be performed by nuclear medicine technologists pursuant to Title 17, California Code of Regulations, Subchapter 4.6. Such procedures shall be performed under the supervision of authorized user physicians on this license who meet the criteria specified in Section 30510. Certificates or special permits issued pursuant to Subchapter 4.6 shall be prominently displayed at the facility(ies) authorized on this license. 22. Treatment and management of patients receiving therapeutic quantities of unsealed radioactive materials shall be in accordance with guidance contained in Chapter 4, "Release from Hospital of Patients Containing Radioactive Material' National Council on Radiation Protection and Measurements (NCRP) Report No. 37, "Precautions in the Management of Patients Who Have Received Therapeutic Amounts of Radionuclides" (NCRP Publications, P.O. Box 30175, Washington, D.C. 20014). 23. Treatment and management of patients undergoing brachytherapy shall be in accordance with guidance contained in Chapter 5,"Safety Precautions in Clinical Application",National Council on Radiation Protection and Measurements (NCRP) Report No. 40, "Protection Against Radiation From Brachytherapy Sources" (NCRP Publications,P.O.Box 30175,Washington,D.C. 20014). 24. Remote afterloading device facilities shall be so constructed as to permit continuous observation of patients from outside the treatment room(s). 25. Written emergency instructions shall be posted conspicuously at the remote afterloading device control(s). Instructions shall include directions for manually turning off the remote afterloading device(s), removing the patient, securing the room(s) against unauthorized entry, and notifying the responsible authorized user or the Radiation Safety Officer. 26. Electrical interlock(s) on entrance door(s) to the remote afterloading device room(s) shall be tested for proper operation at least once every month. Records of test results shall be maintained available for inspection. 27. If there is a reason to suspect that the source position indicator or entrance door(s) interlock(s) is/are not functioning properly, use of the remote afterloading device(s) shall be discontinued until the condition has been corrected. A record of any such malfunction shall be made and maintained available for inspection.