> 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/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-downloads.md).

# OS ESG Downloads

The header files (CSV format only) and classification scheme for the OS ESG are available to download from this page.

{% hint style="info" %}

### Product download

This page provides downloadable files to support the product in use. To download the product itself, please visit the [OS Data Hub](https://osdatahub.os.uk/data).
{% endhint %}

## OS ESG CSV header files

To follow the separation of record type, the CSV (Comma-Separated Values) headers for each record type are available below to download:

{% file src="/files/NWQvIadw9iMNoOLrfO09" %}
OS Emergency Services Gazetteer CSV header files (zipped file).
{% endfile %}

The record types are provided in the following order:

* [BLPU (Type 21)](/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/feature-type/blpu-type-21-record.md)
* [LPI (Type 24)](/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/structured-data-types/lpi-type-24-record.md)
* [Classification (Type 32)](/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/structured-data-types/classification-type-32-record.md)

Information and instructions about how to append the header files is available in the [OS ESG Getting Started Guide](/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-getting-started-guide.md).

## OS ESG Classification Scheme

Download the OS ESG Classification Scheme file below to understand the [classification codes](/os-downloads/products/addresses-and-names-portfolio/os-emergency-services-gazetteer/os-esg-technical-specification/code-lists/classificationcode.md) used for features and their breakdown:

{% file src="/files/21LaXYtToLCMl7G4oB1b" %}
OS Emergency Services Gazetteer Classification Scheme (last updated April 2026).
{% endfile %}


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