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IGES is a set of protocols for the transfer and display of graphical
information on remote devices via a telephone or computer communications
network. IGES does not define any new graphical file formats, but instead
uses existing formats (such as CGM) to encapsulate graphical data.

IGES is associated with the NCGA (National Computer Graphics Association) and
is part of the U.S. Product Data Association (USPRO) and the IGES/PDES
Organization (IGO). The NCGA administers the National IGES User Group (NIUG),
which provides access to information on IGES.

To obtain the IGES specification, you must be a member of both NIUG and a
Regional Interest Group (RIG). The IGES specification is available through
the NCGA for $100US. For more information about the NIUG, RIGs, and IGES,
contact:

  National Computer Graphics Association
  2722 Merrilee Drive
  Suite 3200
  Fairfax, VA 22031 USA
  Voice: 703.698.9600

    IGES - Reference Documents
    http://elib.cme.nist.gov/nipde/stds/wh-iges.html