Which entity is primarily responsible for classified information protection in the NISP?

The Cognizant Security Agency (CSA) is primarily responsible for the protection of classified information in the National Industrial Security Program (NISP). This agency oversees the implementation of security requirements, ensures compliance with national security regulations, and provides guidance and support to facilities working with classified information.

The CSA’s role includes establishing security clearances, conducting security inspections, and fostering a secure environment for classified operations. By ensuring that the necessary security measures are in place and that facilities adhere to required protocols, the CSA plays a critical role in safeguarding national security interests.

While the Facility Security Officer and Industry Security Officer certainly have essential responsibilities pertaining to security at their specific organizations, their roles are performed within the framework set by the CSA. The Department of Defense, although a significant entity concerning national defense, primarily functions in broader defense-related capacities rather than directly overseeing facilities in the NISP. Therefore, the CSA is the correct answer as it holds the overarching authority and responsibility for the protection of classified information within the NISP.