Required field.

Up to 8 characters corresponding to the publication date entered in Imprint field 260, subfield $c. Enter in coded form: «YYYYMMDD».

If there are multiple dates in 260 $c, for example in case of a reprint, the reprint date is entered in 269 $a, not the original date. In case of a publication date and a copyright date, the publication date is entered in 269 $a, not the copyright date. In case of a series with open date or sequence of dates in 260 $c, the first date in the sequence is entered in 269 $a.
Note: The year entered in 269 $a should match the year entered in 008/07-10.

Examples:

008/07-10 2000
008/11-14 1999
260 $c 1999, reprinted 2000
269 $a 2000

008/07-10 199u
260 $c 199?
269 $a 199?

008/07-10 2000
008/11-14 1999
260 $c 2000, c1999
269 $a 2000

008/07-10 2000
008/11-14 [blank]
260 $c 2000 $g (2001 printing)
269 $a 2000