> For the complete documentation index, see [llms.txt](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/written-documentation/data-access.md).

# Data Access

- [Data Interoperability](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/written-documentation/data-access/data-interoperability.md): How to access additional data stacks
- [Understanding Access](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/written-documentation/data-access/understanding-access-requirements-for-biodata-catalyst.md): This checklist is intended to help new users understand their obligations regarding access and permissions, which individual users are responsible for obtaining and maintaining.
- [Submitting a dbGaP Data Access Request](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/written-documentation/data-access/submitting-a-dbgap-data-access-request.md): Users who want to access a hosted controlled study on the ecosystem must be approved for access to that study in dbGaP
- [Checking Access](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/written-documentation/data-access/check-my-access-to-data.md): You can check your access to data on BDC using the website or on a specific platform