Which are types of periodic investigations?

• A. NACLC, PRI, SSBI-PR or PPR
• B. NACI
• C. SSBI
• D. NAC

Answer: (A)

Periodic investigations are follow-up checks done at defined intervals to reverify an individual’s continued eligibility for access. The types used for those ongoing reviews include NACLC (National Agency Check with Local Agency Check), PRI (Periodic Reinvestigation), and SSBI-PR or PPR (the periodic form of the Single Scope Background Investigation). NACLC combines national and local checks, PRI refreshes the background at set intervals, and SSBI-PR/PPR is the periodic variant of the SSBI used for ongoing oversight. Together, these represent the categories designated for periodic reinvestigations.

The other options refer to investigation types that are not, on their own, the periodic reinvestigation categories—NACI is an agency check with inquiries, SSBI is a full initial background investigation, and NAC is a basic agency check.