Part of the remit of ONS Geography's work is to promote a standardised, 'Best Practice' approach to the use of geography in statistics.
The Coding and Naming Policy for UK Statistical Geographies provides details of the GSS coding structure implemented on 1 January 2011.
The Register of Geographic Codes (RGC) is a 'light' but key document that summarises the range of area instances within each geographic entity for the UK.
The Geography Policy for National Statistics provides details of the approach now being implemented for the production of National Statistics.
The three products above can all be downloaded free of charge from the 'Open Geography portal'
The Presentation order guidance, Area classifications and Beginner's Guide to Geographic Referencing also support the aim of harmonising how geography is used to produce UK statistics.
Presentation order guidance for super output areas, and administrative, health and electoral areas.