How indepth is a TS/SCI investigation for the Air Force?

Let me clear a few misconceptions before answering: 1. TS/SCI is a clearance level, not an investigation 2. The standard investigation for a TS/SCI clearance is called a Single Scope Background Investigation, or SSBI 3. read more

TS/SCI is a clearance level, not an investigation; The standard investigation for a TS/SCI clearance is called a Single Scope Background Investigation, or SSBI; The Air Force doesn’t do the investigation itself, or have separate criteria for the investigation from other agencies. read more

OPM's Federal Investigative Services (FIS) is responsible for providing investigative products and services for over 100 Federal agencies to use as the basis for security clearance or suitability decisions as required by Executive Orders and other rules and regulations. Over 90% of the Government's background investigations are provided by OPM. read more