To identify a milestone number

A free-form description to clarify the related data elements and their content.

Code specifying type of date or time, or both date and time.

Date (YYMMDD).

Code specifying type of date or time, or both date and time.

Date (YYMMDD).

Code specifying the units in which a value is being expressed, or manner in which a measurement has been taken

Numeric value of quantity.

Code indicating the status for a work task.

Code indicating type of action.

Code qualifying the Reference Number.

Reference number or identification number as defined for a particular Transaction Set, or as specified by the Reference Number Qualifier.

MIL12 is available for a symbol number, WBS number or other associated reference number.