What type of PSI must be completed within five years prior to assignment for controlled positions within the Nuclear PRP?

The correct answer pertains to the requirement for the Access National Agency Check with Inquiries (ANACI) to be completed within five years prior to assignment for controlled positions within the Nuclear Personnel Reliability Program (PRP). The ANACI is a personnel security investigation designed to assess an individual's suitability to handle sensitive information or work in positions that have a significant impact on national security. This investigation includes checks on criminal history, credit history, and inquiries into the individual's character, conduct, and affiliations.

In the context of the Nuclear PRP, which focuses on ensuring that personnel are reliable and trustworthy, the ANACI serves as an essential tool in determining an individual's eligibility to access controlled areas and information. The five-year timeframe is critical as it ensures that security clearances are kept current, reflecting any significant changes in an individual's background that could affect their reliability and fitness for duty.

Other types of investigations, such as the Single Scope Background Investigation (SSBI), Periodic Reinvestigation (PR), and Basic Background Investigation (BBI), have different scopes, purposes, or timelines for completion but do not specifically meet the criteria set for controlled positions in the Nuclear PRP within the five-year requirement outlined in this context.