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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 GSS Coding and Naming Policy, implemented on 1 January 2011 can be found under Related links
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The products that support the policy; the Register of Geographic Codes (RGC) and Code 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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Code History Database (CHD)
The Code History Database (CHD) provides details of codes, relationships, hierarchies and archived data
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Lookups
Current Look Up listings for a wide range of geographies in the United Kingdom
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Names and codes listings
Current names and codes listings for a wide range of geographies in the UK including super output areas, administrative, electoral, health, eurostat and census geography
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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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Standard Names and Codes (SNAC)
SNAC provides details of codes, hierarchies and relationships between the different United Kingdom geographies
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Ward:Health Matrix
Ward:Health Matrix is a spreadsheet showing the relationships between electoral ward/divisions, Local Authority Districts and Health areas in the United Kingdom
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Ward History Database
Provides a history of English and Welsh electoral ward/division changes between Census Day 1991 and 2010
