Federal Information
                 Processing Standards Publication 4-1

                            1988 JANUARY 27
                      Announcing the Standard for

  REPRESENTATION FOR CALENDAR DATE AND ORDINAL DATE FOR INFORMATION
                              INTERCHANGE


9.  Implementation Schedule. This standard becomes effective July 30,
1988.  Use by Federal agencies is encourage when such use contributes
to operational benefits, efficiency, or economy.

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                            Specific Change

In reference to paragraph 10, Specifications:
For purposes of electronic data interchange in any recorded form
among U.S. Government agencies, NIST highly recommends that
four-digit year elements be used.  The year should encompass a
two-digit century that precedes, and is contiguous with, a two-digit
year-of-century (e.g., 1999, 2000, etc.).  In addition, optional
two-digit year time elements specified in ANSI X3.30-1985(R1991)
should not be used for the purposes of any data interchange among
U.S. Government agencies. SEE BELOW:
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10. Specifications.  This standard adopts American National Standard
ANSI X3.30-1985, Representation for Calendar Date and ordinal Date
for Information Interchange.  The latter was approved on July 30,
1985 as a revision of ANSI X3.30-1971, and is published by the
American National Standards Institute, 1430 Broadway, New York, NY
10018.