> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Machine-Readable Zone Fields

> List of machine-readable zone (MRZ) fields that ABBYY FineReader Engine 12 extracts from ID documents — document type, name, expiry date, nationality, and more.

ABBYY FineReader Engine 12 provides extraction of the following machine-readable zone (MRZ) fields:

| Field type        | Description                                                                                                                              |
| ----------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| DocumentType      | The type of a document.                                                                                                                  |
| DocumentSubtype   | The subtype of a document (if exists).                                                                                                   |
| IssuingCountry    | Code of issuing state (ISO 3166-1 alpha-3 code).                                                                                         |
| LastName          | Document holder's surname.                                                                                                               |
| GivenName         | One or several given names separated with the space character.                                                                           |
| DocumentNumber    | The number of the document (this field contains 9 digits in the ICAO Standard passports and 10 digits in the Russian national passport). |
| Nationality       | Document holder's nationality (ISO 3166-1 alpha-3 code).                                                                                 |
| BirthDate         | Document holder's date of birth.                                                                                                         |
| Sex               | Document holder's sex.                                                                                                                   |
| ExpiryDate        | Document date of expiry.                                                                                                                 |
| PersonalNumber    | Document holder's personal number (if exists).                                                                                           |
| OptionalDataLine1 | Optional data from the first line of the 2-line or 3-line MRZ.                                                                           |
| OptionalDataLine2 | Optional data from the second line of the 2-line or 3-line MRZ.                                                                          |

## See also

[MrzFieldTypeEnum](/fine-reader/engine/api-reference/enumerations/mrzfieldtypeenum)

[MrzField](/fine-reader/engine/api-reference/document-related-objects/mrzfield)

[Machine-Readable Zone Capture](/fine-reader/engine/guided-tour/basic-usage-scenarios-implementation/machine-readable-zone-capture)