A security clearance is a determination by the U.S. government that an individual is eligible to access classified information. The process of applying for a security clearance can be complex and time-consuming, but it is essential for anyone who wishes to work in a position that requires access to classified information.
There are three main types of security clearances: confidential, secret, and top secret. The type of clearance that an individual needs will depend on the level of classified information that they will be accessing. The application process for each type of clearance is similar, but the level of scrutiny will increase as the level of classification increases.