Integral file block

Definition
Integral file block means

"a distinct component of a file series . . . that should be maintained as a separate unit in order to ensure the integrity of the records. An integral file block may consist of a set of records covering either a specific topic or a range of time, such as a Presidential administration or a 5-year retirement schedule within a specific file series that is retired from active use as a group. For purposes of automatic declassification, integral file blocks shall contain only records dated within 10 years of the oldest record in the file block."