Forwarded from the MARClist; apologies for duplication.

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The Network Development and MARC Standards Office as recently posted
its "Guidelines for the Non-Sorting Control Character Technique" on
the Web at: http://www.loc.gov/marc/nonsorting.html

It defines guidelines for using the technique, along with tables
listing the MARC 21 subfields and fields in which the technique
may currently be used.  Many detailed examples are also included in
the document.

Consideration may be given to broadening the use of the technique
in the formats in the future. Please send any questions, comments or
suggestions to: [log in to unmask]

Sincerely,
Jackie Radebaugh
Library of Congress
Network Development & MARC Standards Office
Washington, DC USA
Phone:  +1-202-707-1153
FAX:  +1-202-707-0115
E-Mail:  [log in to unmask]