Declassification is the process of removing the classified status of information, making it accessible to the public. This typically involves government documents or materials that were previously restricted due to national security concerns. Once declassified, the information can be reviewed, studied, and used by researchers, journalists, and the general public. The declassification process often follows specific guidelines set by agencies like the National Archives and Records Administration in the United States. It can occur after a certain period, such as 25 years, or when the information no longer poses a security risk.