date-type Type of Date

Event in the lifecycle of a standard that this date is marking, for example, the date the standards document was published. These values are not standard lifecycle events, such as “amended”.
OPTIONAL on elements: <date>, <release-date>
Value Meaning
Text, numbers, or special characters Names a date referring to a single instance of a specific published edition of a standard (single publication of a dated designation). In other words, this names a date in the lifecycle of this standard rather than a type of standard from the standards lifecycle (such as “Addenda”).
Restriction This is an optional attribute; there is no default.

Suggested usage

Although designed to accept any text as its value, the following are suggested date types:
published
Date on which the particular edition/version of a standard is published
editorial-change
Date of a modification with no changes of technical merit or that require balloting
reaffirmed
Date a standard is reaffirmed or reapproved with no technical or substantial change (redesignation adds to previous, dated designation)
stabilized-maintenance
A maintenance date, indicating no change, a previously published standard under ANS stabilized maintenance (adds to previous dated designation)
withdrawn
Date on which a document is no longer a formal standard — may still be available for historical reference
OPTIONAL on element: <meta-date>
Value Meaning
Text, numbers, or special characters Names, for example, a lifecycle stage that should not be expressed with <release-date> or a circumstance that is unique to a particular standards organization, for example, “Date of Issuance” for ASME or “Date of ratification” for CEN-CENELEC. There are no suggested values for this attribute. Best Practice for new documents is to use this @date-type attribute instead of the ISO-specific @type attribute to record this date-typing information.
Restriction This is an optional attribute; there is no default.
OPTIONAL on element: <pub-date>
Value Meaning
Text, numbers, or special characters The meaning and values for @date-type for this element were taken directly from JATS and are more appropriate to journal articles than to standards. Best Practice for NISO STS is to use the element <release-date> to indicate publication dates.
Restriction This is an optional attribute; there is no default.

Suggested usage

Although designed to accept any text as its value, the following are suggested date types:
accepted
The date a manuscript was accepted
received
The date a manuscript was received
rev-recd
The date a revised manuscript was received
rev-request
The date revisions were requested or a manuscript was returned