Which investigation standard is used for non-sensitive positions requiring Top Secret clearance eligibility?

The Single Scope Background Investigation (SSBI) is the standard utilized for non-sensitive positions that require eligibility for Top Secret clearance. This comprehensive investigation delves into an individual’s background over a period that generally spans the last 10 years, covering a thorough check of personal, financial, employment, and educational history, as well as interviews with neighbors, references, and family members.

The rationale behind using the SSBI for Top Secret clearance eligibility lies in the higher level of scrutiny associated with accessing classified information. This ensures that individuals in such positions are thoroughly vetted to safeguard national security.

Other standards may apply to different types of positions or security clearances, but they do not provide the same level of detailed investigation as the SSBI when it comes to Top Secret eligibility. For instance, the National Agency Check with Local Agency and Credit Check (NACLC) is typically used for positions requiring Confidential or Secret clearance and is not as extensive as the SSBI. Similarly, the Access National Agency Check with Inquiries (ANACI) may be appropriate for lower levels of clearance, while the Critical Sensitive Investigation (CSI) focuses on specific sensitive roles rather than the broader scope necessary for Top Secret access.