+ A certificate of registration indicating that the work has been
registered, or if the application cannot be accepted, a letter
explaining why it has been rejected.

Requests to have certificates available for pickup in the Public
Information Office or to have certificates sent by Federal Express or
another mail service cannot be honored.

If you want to know the date that the Copyright Office receives your
material, send it by registered or certified mail and request a return
receipt.

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CORRECTIONS AND AMPLIFICATIONS OF EXISTING REGISTRATIONS

To correct an error in a copyright registration or to amplify the
information given in a registration, file a supplementary registration
form -- Form CA [http://www.loc.gov/copyright/forms/formca.pdf] -- with
the Copyright Office. The filing fee is $65. (See Note above.) The
information in a supplementary registration augments but does not
supersede that contained in the earlier registration. Note also that a
supplementary registration is not a substitute for an original
registration, for a renewal registration, or for recording a transfer of
ownership. For further information about supplementary registration,
request Circular 8 "Supplementary Copyright Registration"
[http://www.loc.gov/copyright/circs/circ08.pdf].

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MANDATORY DEPOSIT FOR WORKS PUBLISHED IN THE UNITED STATES

Although a copyright registration is not required, the Copyright Act
establishes a mandatory deposit requirement for works published in the
United States. See the definition of "publication." In general, the
owner of copyright or the owner of the exclusive right of publication in
the work has a legal obligation to deposit in the Copyright Office,
within 3 months of publication in the United States, two copies (or in
the case of sound recordings, two phonorecords) for the use of the
Library of Congress. Failure to make the deposit can result in fines and
other penalties but does not affect copyright protection.

Certain categories of works are exempt entirely from the mandatory
deposit requirements, and the obligation is reduced for certain other
categories. For further information about mandatory deposit, request
Circular 7d "Mandatory Deposit of Copies or Phonorecords for the Library
of Congress." [http://www.loc.gov/copyright/circs/circ07d