Names, codes and look ups
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ONS Geography provides a range of products to define names and codes and the relationships between geographies
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The 'new' GSS Coding and Naming Policy to be implemented on 1 January 2011 can be found under Related links
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The products that support the new policy; the Register of Geographic Codes (RGC) and Change History Database (CHD) are available via the links below
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Current names and codes are available via the link to the Names and codes listings
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Further information and details of how to obtain the various products available can be found at the following links
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Register of Geographic Codes (RGC)
The RGC summarises the range of area instances within each geographic unit
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Change History Database (CHD)
Provides details of codes, relationships, hierarchies and archived data
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Standard Names and Codes (SNAC)
About the Standard Names and Codes (SNAC) database
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Ward History Database
Provides a history of electoral wards/divisions in England and Wales since Census Day 1991
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Ward:Health Matrix
About the Ward:Health spreadsheet of names and codes
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Names and codes listings
About the definitive area names and codes used in statistical production
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Look ups
Product details for look up files maintained by ONS Geography
