What type of information is exempted from mandatory declassification review?

The type of information exempted from mandatory declassification review is information from the current President and staff. This exemption exists because the President and their immediate advisors require the ability to communicate and operate without the constraints of declassification processes that might affect national security or sensitive diplomatic matters. This ensures that executive functions can be carried out effectively, allowing for the necessary level of confidentiality in decision-making and policy formulation.

Information from the President and their staff is treated differently from other types of classified information, primarily to protect the integrity of the executive branch's decision-making processes. This exemption encompasses various types of communications and documents that have a direct bearing on national security or the broader conduct of government policy. As such, this ensures that critical strategic and operational information remains secure when necessary, without the risk of premature disclosure that could undermine these functions.