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Ordnance Survey – Great Britain's national mapping agency

OS MasterMap® service information

This section contains links to the following information on OS MasterMap:

Privacy policy

When you place orders, we offer the use of a secure server. The secure server software SSL encrypts all information you input before it is sent to us. Furthermore, We are compliant with all aspects of the United Kingdom Data Protection Act 1998 and follow strict security procedures in the storage and disclosure of information, which you have given us to prevent unauthorised access.

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Password Management

Guidance on choosing your password and keeping it secure.

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Service information

Information on copyright & trademarks, service availability and expected response, download and delivery times.

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Glossary

OS MasterMap online service glossary: an A-Z of terms used in the online service.

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Further information is available on our technical information page

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