What AR covers storage of PII on a government network?

The applicable Administrative Regulation (AR) that covers the storage of Personally Identifiable Information (PII) on a government network is often governed by Federal Laws and guidelines, such as the Federal Information Security Management Act (FISMA) and the Privacy Act of 1974. Additionally, agencies may follow specific internal policies and directives that align with the National Institute of Standards and Technology (NIST) guidelines for safeguarding PII. These regulations ensure that appropriate security measures are in place to protect sensitive information from unauthorized access and breaches.