Some of the ONS data collections will be coding a block of records to both SOC 1990 and SOC2000 to plot the relationship between the two classifications on their data.
The Classifications and Harmonisation Unit will receive the copies of the output and analyses from this SOC relationship work and hold them as a source of information for users of SOC.
International Standard Classification of Occupations (European variant) (ISCO 88 COM)
A mapping of SOC2000 unit groups to unit groups in ISCO 88 COM is available from the Classifications and Harmonisation Unit.
SOC 1990 was used to derive the two government social classifications; Social Class based on Occupation and Socio-economic Group.
The National Statistics Socio-economic Classification (NS-SEC) is replacing both of these classifications and SOC2000 is used to derive the NS-SEC.