> 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/addressbase-premium-islands/addressbase-premium-islands-technical-specification/dataset-metadata.md).

# Dataset metadata

The pages in this section define dataset metadata for the CSV format of AddressBase Premium Islands product:

## AddressBase Premium Islands dataset metadata

* ​[Header (Type 10 Record)​](/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/dataset-metadata/header-type-10-record.md)
* ​[Metadata (Type 29 Record)​](/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/dataset-metadata/metadata-type-29-record.md)
* ​[Trailer (Type 99 Record)](/os-downloads/products/addresses-and-names-portfolio/addressbase-premium-islands/addressbase-premium-islands-technical-specification/dataset-metadata/trailer-type-99-record.md)


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