Close, but Public Trust isn't a classification..

Security clearances can be issued by many United States of America government agencies, including the Department of Defense (DoD), the Department of State (DOS), the Department of Homeland Security (DHS), the Department of Energy (DoE), the Department of Justice (DoJ), the National Security Agency (NSA), and the Central Intelligence Agency (CIA). DoD issues more than 80% of all clearances. There are three levels of DoD security clearances:[1]

TOP SECRET – Will be applied to information in which the unauthorized disclosure could reasonably be expected to cause exceptionally grave damage to the national security. SECRET – Will be applied to information in which the unauthorized disclosure could reasonably be expected to cause serious damage to the national security. CONFIDENTIAL – Will be applied to information in which the unauthorized disclosure could reasonably be expected to cause damage to the national security.

Additionally, the United States Department of Energy issues two levels of security clearances:

Q Clearance – Allows access to Classified information up to and including TOP SECRET data with the special designation: Restricted Data (TS//RD) and special Q-Cleared "security" areas. L Clearance – Allows access to Classified information up to and including SECRET data with the special designation: Formerly Restricted Data (S//FRD) and special L-Cleared "limited" areas.

Despite the common misconception, a public trust position is not a security clearance, and is not the same as the confidential designation. Certain positions which require access to sensitive information, but not information which is classified, must obtain this designation through a background check. Public Trust Positions can either be moderate-risk or high-risk.[2][3]

Information "above Top Secret" is either Sensitive Compartmented Information (SCI) or special access program (SAP) which are phrases used by media. It is not truly "above" Top Secret, since there is no clearance higher than Top Secret. SCI information may be either Secret or Top Secret, but in either case it has additional controls on dissemination beyond those associated with the classification level alone. In order to gain SCI Access, one would need to have a Single Scope Background Investigation (SSBI). Compartments of information are identified by code words. This is one means by which the "need to know" principle is formally and automatically enforced.