Which of the following statements about personnel security investigations is true?

The statement that ANACI is approved for Secret clearance eligibility is accurate because ANACI (Access National Agency Check with Inquiries) is specifically used for individuals seeking access to classified information at the Secret level. This investigation process includes checks against national databases and inquiries into the individual's background to assess their suitability for holding a security clearance.

In the realm of personnel security investigations, ANACI is a streamlined screening process for Secret clearance applicants. It ensures that the necessary evaluations are made regarding an applicant's trustworthiness and reliability before granting them access to sensitive information.

The other statements do not hold true in this context. For example, SSBI (Single Scope Background Investigation) is not required for all types of positions, as it is specifically designated for positions requiring Top Secret clearance. Similarly, NACLC (National Agency Check with Local Agency Check and Credit Check) is typically used for positions that are designated as non-sensitive or low-risk, rather than non-sensitive positions requiring it exclusively. Additionally, Critical Sensitive positions are often directly tied to the need for accessing classified information, contrary to what the last statement suggests. This highlights the importance of understanding the relationships between types of positions and the appropriate security investigations that correspond to access levels.