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CONTROL: Control number

Text: This is the scrambled control number from the masterfile. It is used to preserve confidentiality and to enable longitudinal matches to earlier files.

Location: 1-12 (width: 12; decimal: 0)

Variable Type: character


Source: This variable was taken from: American Housing Survey, 1997: National Microdata.

Copyright: ICPSR has an FAQ on copyright and survey instruments.