Confidential?
This type of security clearance provides access to information that could cause damage to national security if disclosed without authorization. It must be reinvestigated every 15 years.
Secret?
Same as a confidential clearance but must be reinvestigated every 10 years.
Top Secret?
Same as a confidential clearance but must be reinvestigated every five years.
Top Secret, Sensitive Compartmented Information
SCI is an access program that gets “added on” to the clearance.