The year, month, and day of birth, (or age to be used only when date of birth cannot be obtained), of the person involved in a crash.
Subfield 1: Date of Birth
Subfield 2: Age
Accurate reporting of date of birth is used to assess the effectiveness of occupant protection systems for specific age groups, and to identify the need for safety programs directed toward them. This element is also critical in providing linkage between the crash, EMS, and hospital records.