All radiation sources must be stored in a secure location (restricted access, minimum fire hazard, approved ventilation, sufficient shielding), labeled, and the location posted with a "Caution Radioactive Material" or “Caution Radiation Emitting Device” sign. The Radiation Safety Office will provide the laboratory with the proper signs and documentation to ensure compliance with the posting requirements of l0 CFR 20 and 105 CMR 120.
