Except for those agencies specifically excluded from Office of Personnel Management (OPM) recordkeeping requirements by statute, OPM regulation, or formal agreement between OPM and the agency, this subpart applies to—and within this subpart agency means—each executive department and independent establishment of the Federal Government; each corporation wholly owned or controlled by the United States; and, with respect to positions subject to civil service rules and regulations, the legislative and judicial branches of the Federal Government. OPM will list agencies to which this subpart does not apply in the Guide to Personnel Recordkeeping, and will amend the Guide from time to time to update that list.