Definitions

As used in 105 CMR 120.050 through 120.080, the following definitions apply: Access Control means a system for allowing only approved individuals to have unescorted access to the security zone and for ensuring that all other individuals are subject to escorted access. Aggregated means accessible by the breach of a single physical barrier that would allow access to radioactive material in any form, including any devices that contain the radioactive material, when the total activity equals or exceeds a category 2 quantity of radioactive material. Approved Individual means an individual whom the licensee has determined to be trustworthy and reliable for unescorted access in accordance with 105 CMR 120.056 through 120.062 and who has completed the training required by 105 CMR 120.064(C). Background Investigation means the investigation conducted by a licensee or applicant to support the determination of trustworthiness and reliability. Carrier means a person engaged in the transportation of passengers or property by land or water as a common, contract, or private carrier, or by civil aircraft. Category 1 Quantity of Radioactive Material means a quantity of radioactive material meeting or exceeding the category 1 threshold in 105 CMR 120.080: Appendix A: Table 1. This is determined by calculating the ratio of the total activity of each radionuclide to the category 1 threshold for that radionuclide and adding the ratios together. If the sum is equal to or exceeds 1, the quantity would be considered a category 1 quantity. Category 1 quantities of radioactive material do not include the radioactive material contained in any fuel assembly, subassembly, fuel rod, or fuel pellet. Category 2 Quantity of Radioactive Material means a quantity of radioactive material meeting or exceeding the category 2 threshold but less than the category 1 threshold in 105 CMR