Open Access Publication Date

If an article is open-access then include a <pub-date> element containing a @pub-type attribute with value open-access.

Note: Typically this date is the same as the Online Publication Date, however it must be set to the appropriate date when the status of an article is changed to open-access after initial publication.

The <pub-date> element must have a @iso-8601-date attribute containing a ISO-8601 formatted date (See https://www.iso.org/iso-8601-date-and-time-format.html)

The <pub-date> must have <day> , <month> and <year> child elements populated with the correct numerical values.

The date values must include leading zeros.

Example

<pub-date pub-type="open-access" iso-8601-date="2023-06-07">
  <day>07</day>
  <month>06</month>
  <year>2023</year>
</pub-date>