1966-1976 CD Comparability Indicator

A one digit code set as follows:

0 = Comparable CD between 1966 and 1976 census (in other words for the 1966-1971 first comparability indicator, a code of 0 must have existed on the 1971 Census CD master file and a comparability code of 0 must be in existence for the 1971-1976 comparability indicator)

1 = Any situation where the 1966 CD is not comparable with the 1976 CD.

NOTE: The 1966-1971 first comparability code was set to 0 if the CD was perfectly comparable or if less than 20 dwellings were involved in any boundary change in an urban area between 1966 and 1971.


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