# OS NGD Migration

A series of articles that cover products that have had an End of Life notice published and providing a comparison with the equivalent dataset from the OS National Geographic Database (OS NGD).

<table data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center">Comparison of End of Life Address Products</td><td data-object-fit="cover" data-alt="Image of addresses over buildings in an urban area"><a href="/files/qJMn2BFiOMY5CXvQU8Y7">/files/qJMn2BFiOMY5CXvQU8Y7</a></td><td><a href="/pages/ary9YaxSOIjiqJ5dwKad">/pages/ary9YaxSOIjiqJ5dwKad</a></td></tr><tr><td align="center">Comparison of Transport Network Products</td><td data-object-fit="cover" data-alt="image of transport networks in Exeter"><a href="/files/qg7IOOrqvUXA3NkrxBx3">/files/qg7IOOrqvUXA3NkrxBx3</a></td><td><a href="/pages/iE2h2uUxyzpoRrcEexNa">/pages/iE2h2uUxyzpoRrcEexNa</a></td></tr><tr><td align="center">Comparison of Water Network Products</td><td data-object-fit="cover" data-alt="Image of river network"><a href="/files/Ydr0Mx5etprk6dulTXRY">/files/Ydr0Mx5etprk6dulTXRY</a></td><td><a href="/pages/dHxweLbg0vJ6B5kb3yw1">/pages/dHxweLbg0vJ6B5kb3yw1</a></td></tr><tr><td align="center">Comparison of OS MasterMap Greenspace Layer and OS NGD</td><td data-object-fit="cover" data-alt="Image showing OS MasterMap Greenspace Layer Data displayed over an urban area."><a href="/files/dWpaqSJ9A649BLoQL6r1">/files/dWpaqSJ9A649BLoQL6r1</a></td><td><a href="/pages/YG8Z0XI9RdIste6Xn4ot">/pages/YG8Z0XI9RdIste6Xn4ot</a></td></tr></tbody></table>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.os.uk/more-than-maps/os-ngd-migration.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
