The National Archives Catalog

Description Type

Mandatory Repeatable Data Type Authority Level Available A/V Only Public Element
Yes No Variable Character Length (40) Description Type List Record Group
File Unit
No Yes


Definition: The archival control group level (record group or collection) or hierarchical description level (series, file unit, or item) of the archival materials.


Purpose: Enables users to know the level of aggregation at which the archival materials are being described.


Relationship: This element is independent.


Guidance: Choose the correct term from the Description Type Authority List.

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