From:         "Lisette Burgos, ACM SIG Srvcs." <BURGOS@ACMVM>
Subject:      ACM Copyright form & Inst.

                      ACM Copyright Procedures


  ACM Policy on Copyright Ownership
    It is the policy of ACM to own the copyrights on its technical
    publications to protect the interests of ACM, its authors and their
    employers, and at the same time to facilitate the appropriate
    reuse of this material by others.

  Written Signatures Required by Law
    United States Copyright Law requires that the transfer of
    copyright of each contribution from the author to ACM be
    confirmed in writing. It is necessary that authors sign either
    Part A or Part B of the copyright form and return it with the
    manuscript to the address on the form .

  Authorization to Transfer Copyright
    If you are employed and you prepared your paper as a part of
    your job, the rights to your paper may initially rest with your
    employer. In that case, when you sign the copyright transfer
    form, we assume you are authorized to do so by your employer. If
    not, it should be signed by someone so authorized.

  Jointly Authored Papers
    For jointly authored papers, an original signature is required
    from the first-named (assumed senior) author only. However, we
    assume all authors have been advised and have consented to the
    terms of this form.

  Government Authors
    Authors who are U.S. Government employees and/or whose papers
    are  not copyrightable as part of certain Government contract
    work, are not required to sign Part A, but any coauthors outside
    the government contract are.

    Part B of the form is to be used instead of Part A only if all
    authors are U.S. Government employees and they prepared the
    paper as part of their job, or the work is an uncopyrightable
    product of a Government contract.

  Retained Author Rights
    ACM authors have all the rights scientific authors have
    historically enjoyed, including the right to present orally the
    submitted or similar material in any form; the right to make
    minor reuse, with credit, in publications (and major reuse in
    works of the author's own with notice and with credit to ACM);
    the right to republish with notice and credit to ACM, in works
    published by the employer or for the employer's internal
    purposes; the right to reproduce for peer review in reasonable
    quantities; and all proprietary rights other than copyright.

  Republication  Permissions
    Although it is not part of ACM's policy to grant authors or
    their organizations the sole right to approve permissions for
    republishing by third parties, ACM always seeks the approval of
    its authors, for jointly authored papers the first-named
    (assumed senior) author only, in weighing such requests.  This
    is done as a matter of professional courtesy.

                         ACM COPYRIGHT FORM

    Title of Work: ___________________________________________________

    Author(s): _______________________________________________________

  A. Transfer of Agreement

 Copyright to the above work (including without limitation, the right
 to publish the work in whole or in part in any and all forms of
 media, now or hereafter known) is hereby transferred to the ACM (for
 U.S. Government work, to the extent transferable) effective as of the
 date of this agreement on the understanding that the work has been
 accepted for publication by ACM.

 However, each of the authors reserve the following:

 (1) All proprietary rights other than copyright (and the publication
 rights transferred to ACM), such as patent rights.

 (2) The right to use in future works of the author's own, such as
 articles or books, all or part of this paper with acknowledgement to
 ACM, and also with prior notice to ACM if the use is for direct
 commercial advantage.

 This form must be signed by the author or, in the case of a "work
 made for hire," by the employer and must be received by the
 Association for Computing Machinery - See Box C - before processing
 of the manuscript for publication can be completed. Authors should
 understand that consistent with ACM's policy of encouraging
 dissemination of information each published paper will appear with
 the following notice:

 "Permission to copy without fee all or part of this material is
 granted provided that the copies are not made or distributed for
 direct commercial advantage, the ACM copyright notice and the title
 of the publication and its date appear, and notice is given that
 copying is by permission of the Association for Computing Machinery.
 To copy otherwise, or to republish, requires a fee and/or specific
 permission."

    Signature: ____________________________________  Date: ___________

    Print Name: ___________________________________________________

    Title, if not Author: ____________________________________________


    B. Declaration for U.S. Government Work
    This Certifies that the above author(s) wrote the paper, (a) as
    part of work as U.S. Government employees or, (b) as other
    noncopyrightable work.

    Signature: ___________________________________

    Agency: ___________________________________

    Title, if not Author: ___________________________________