(d) Deposits not selected by the Library under subsection (b), or
identifying portions or reproductions of them, shall be retained under
the control of the Copyright Office, including retention in Government
storage facilities, for the longest period considered practicable and
desirable by the Register of Copyrights and the Librarian of Congress.
After that period it is within the joint discretion of the Register and
the Librarian to order their destruction or other disposition; but, in
the case of unpublished works, no deposit shall be knowingly or
intentionally destroyed or otherwise disposed of during its term of
copyright unless a facsimile reproduction of the entire deposit has been
made a part of the Copyright Office records as provided by subsection
(c).

(e) The depositor of copies, phonorecords, or identifying material under
section 408, or the copyright owner of record, may request retention,
under the control of the Copyright Office, of one or more of such
articles for the full term of copyright in the work. The Register of
Copyrights shall prescribe, by regulation, the conditions under which
such requests are to be made and granted, and shall fix the fee to be
charged under section 708(a)(10) if the request is granted.


Section 705. Copyright Office records: Preparation, maintenance, public
inspection, and searching [5]

(a) The Register of Copyrights shall ensure that records of deposits,
registrations, recordations, and other actions taken under this title
are maintained, and that indexes of such records are prepared.

(b) Such records and indexes, as well as the articles deposited in