A security clearance is the determination made by federal government that a person is eligible for access to classified information and suitability for employment. A security clearance is granted only after a personnel security background investigation has been conducted into the applicant’s personal and professional history.

The purpose of the background investigation is to determine whether the applicant has the ability and ability to protect and safeguard classified material. If the federal government is not confident in the applicant’s character and fitness, it has the exclusive right to deny applicant a security clearance.