> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/areas-and-zones-portfolio/boundary-line/boundary-line-technical-specification/gml/features-gml/administrativeunit.md).

# AdministrativeUnit

Unit of administration where a Member State has and/or exercises jurisdictional rights for local, regional and national governance.

## Feature type attributes <a href="#feature-type-attributes" id="feature-type-attributes"></a>

The following page provides details about the attributes included with this feature type, their data types in the different output formats, and other important metadata about them.

### ID

`Admin_Unit_ID` from Boundary-Line, which is preceded by `osgb7` and enough zeros to make it 16 digits, for example, `Admin_Unit_ID=25483` becomes `osgb7000000000025483`.

* **Attribute Name**: gml:id
* **Data Type**: CharacterString
* **Size**: 16
* **Multiplicity**: \[1]

### Identifier

Use identifier from Boundary-Line linked data. For example, `http://data.ordnancesurvey.co.uk/id/7000000000025483`. The number is the `Admin_Unit_ID` from Boundary-Line, which is preceded by the number 7 and enough zeros to make it 16 digits, for example, `Admin_Unit_ID=25483` becomes `7000000000025483`.

* **Attribute Name**: gml:identifier
* **Data Type**: CharacterString
* **Size**: 16
* **Multiplicity**: \[1]

### Geometry

Geometric representation of spatial area covered by this administrative unit. Can be a multi- polygon.

* **Attribute Name**: geometry
* **Data Type**: GM\_Surface
* **Multiplicity**: \[1]

### National code

Set to the Census/GSS Code for the boundary, for example, E10000014.

* **Attribute Name**: nationalCode
* **Data Type**: CharacterString
* **Size**: 8
* **Multiplicity**: \[1]

### Inspire local ID

Admin\_Unit\_ID from Boundary-Line, which is preceded by the number 7 and enough zeros to make it 16 digits, for example, `Admin_Unit_ID=25483` becomes `7000000000025483`.

* **Attribute Name**: inspireId.Identifier.localId
* **Data Type**: CharacterString
* **Size**: 16
* **Multiplicity**: \[1]

### Inspire namespace

Set to '`http://data.ordnancesurvey.co.uk/id/`'.

* **Attribute Name**: inspireId.Identifier.namespace
* **Data Type**: IdentifierNamespaceValue
* **Multiplicity**: \[1]

### Inspire version ID

Set to publication timestamp, for example, '`2016-09-20T16:18:19.000`'.

* **Attribute Name**: inspireId.Identifier.versionId
* **Data Type**: DateTime
* **Multiplicity**: \[1]

### National level

Level in the national administrative hierarchy at which the administrative unit is established. Note that the UK boundary (nationalLevel = 1stOrder) or the boundaries of England/Wales/Scotland (nationalLevel = 2ndOrder) are not included.

* **Attribute Name**: nationalLevel
* **Code List Name**: [AdministrativeHierarchyValue](/os-downloads/products/areas-and-zones-portfolio/boundary-line/boundary-line-technical-specification/gml/code-lists-gml/administrativehierarchyvalue.md)
* **Multiplicity**: \[1]

### National level name

Name of the level in the national administrative hierarchy at which the administrative unit is established.

* **Attribute Name**: nationalLevelName
* **Code List Name**: [NationalClassificationValue](/os-downloads/products/areas-and-zones-portfolio/boundary-line/boundary-line-technical-specification/gml/code-lists-gml/nationalclassificationvalue.md)
* **Multiplicity**: \[1]

### Country

Set to '`UK`'.

* **Attribute Name**: country
* **Data Type**: CountryValue
* **Multiplicity**: \[1]

### language.xsi:nil

Set to '`true`'.

* **Attribute Name**: name.language.xsi:nil
* **Data Type**: BooleanTrueValue
* **Multiplicity**: \[1]

### language.nilReason

Set to '`unknown`'.

* **Attribute Name**: name.language.nilReason
* **Data Type**: UnknownReasonValue
* **Multiplicity**: \[1]

### nativeness.xlink:title

Set to '`endonym`'.

* **Attribute Name**: name.nativeness.xlink:title
* **Data Type**: NativenessValue
* **Multiplicity**: \[1]

### nativeness.xlink:href

Set to '`http://inspire.ec.europa.eu/codelist/NativenessValue#endonym`'.

* **Attribute Name**: name.nativeness.xlink:href
* **Data Type**: NativenessNamespaceValue
* **Multiplicity**: \[1]

### nameStatus.xlink:title

Set to '`official`'.

* **Attribute Name**: name.nameStatus.xlink:title
* **Data Type**: NameStatusValue
* **Multiplicity**: \[1]

### nameStatus.xlink:href

Set to '`http://inspire.ec.europa.eu/codelist/NameStatusValue#official`'.

* **Attribute Name**: name.nameStatus.xlink:href
* **Data Type**: NameStatusNamespaceValue
* **Multiplicity**: \[1]

### sourceOfName

Set to '`Boundary-Line'`.

* **Attribute Name**: name.sourceOfName
* **Data Type**: SourceOfNameValue
* **Multiplicity**: \[1]

### pronunciation.xsi:nil

Set to '`true`'.

* **Attribute Name**: name.pronunciation.xsi:nil
* **Data Type**: BooleanTrueValue
* **Multiplicity**: \[1]

### pronunciation.nilReason

Set to '`missing`'.

* **Attribute Name**: name.pronunciation.nilReason
* **Data Type**: MissingReasonValue
* **Multiplicity**: \[1]

### spelling.text

Official national geographical name of the administrative unit.

* **Attribute Name**: name.spelling.text
* **Data Type**: CharacterString
* **Multiplicity**: \[1]

### spelling.script

Set to '`Latn`'.

* **Attribute Name**: name.spelling.script
* **Data Type**: ScriptValue
* **Multiplicity**: \[1]

### residenceOfAuthority.xsi:nil

Set to '`true'`.

* **Attribute Name**: residenceOfAuthority.xsi:nil
* **Data Type**: BooleanTrueValue
* **Multiplicity**: \[1]

### residenceOfAuthority.nilReason

Set to '`unknown`'.

* **Attribute Name**: residenceOfAuthority.nilReason
* **Data Type**: UnknownReasonValue
* **Multiplicity**: \[1]

### beginLifespanVersion

Set to publication timestamp, for example, `2016-09-20T16:18:19.000`.

* **Attribute Name**: beginLifespanVersion
* **Data Type**:
* **Multiplicity**: \[1]

### boundary.xsi:nil

Set to 't`rue'`.

* **Attribute Name**: boundary.xsi:nil
* **Data Type**: BooleanTrueValue
* **Multiplicity**: \[1]

### boundary.nilReason

Set to '`unknown`'.

* **Attribute Name**: boundary.nilReason
* **Data Type**: UnknownReasonValue
* **Multiplicity**: \[1]


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