Certified Governance Risk and Compliance (CGRC) Practice Exam 2026 - Free CGRC Practice Questions and Study Guide

The guideline for identifying a national security system is outlined in the document NIST SP 800-59, which explicitly defines what constitutes a national security system. This publication provides criteria for determining whether an information system is deemed to fall under the jurisdiction of national security, emphasizing the need for adherence to specific policies, regulations, and standards applicable to the protection of national security information.

In contrast, the other documents serve different purposes: NIST SP 800-53 focuses on security and privacy controls for federal information systems, but it does not specialize in defining national security systems. NIST SP 800-37 concentrates on the Risk Management Framework, outlining processes for managing security risk, while NIST SP 800-53A is used for assessing security and privacy controls, primarily to assist in the evaluation of the effectiveness of those controls.

Thus, NIST SP 800-59 is the relevant document for identifying national security systems due to its specific focus on defining the parameters and importance of such systems within the context of national security.