secret periodic reinvestigation
1SPR — Spray (Medical » Physiology) *** Surface Plasmon Resonance (Academic & Science » Physics) ** Strategic Petroleum Reserve (Governmental » Transportation) * Spreadsheet (Computing » File Extensions) * Sierra Pacific Resources (Business » Firms) *… …
2Polygraph — This article is about the forensic instrument. For the automatic signing instrument, see Autopen. For the dual pen device that produces a simultaneous copy of an original while it is written in cursive writing, see Polygraph (duplicating device) …
3List of U.S. security clearance terms — The followings list of terms is used to indicate type, level, or scope of security clearance and background investigation in the United States.Security clearance descriptors often appear in employment advertisements, as employers generally prefer …
