What does FRD stand for in the context of atomic data?

FRD stands for Formerly Restricted Data, which denotes a category of information related to atomic energy and weapons that was once considered restricted but has since been downgraded. This classification is essential because it reflects the nation's evolving stance on the accessibility of certain types of nuclear-related information, balancing the need for national security with transparency.

Understanding FRD is vital for those dealing with classified information, as it defines how data previously protected can be handled, shared, or disclosed. The classification of data as FRD indicates that while it may have been sensitive, it no longer requires the same level of stringent safeguarding as it once did. This is important for compliance with regulatory standards and ensuring that individuals handling atomic data recognize what can be made available to the public or other entities.

In contrast, the other terms presented do not correctly reflect the established classification related to atomic data. They might allude to different types of data or regulatory frameworks but do not pertain to the specific category defined as Formerly Restricted Data in the context of nuclear and atomic information.