1971 CD code
This is a code in the range 1 to 26. The code is used in conjunction with 1971 LGA Code and 1971 LGA Part Code to uniquely identify each CD.
The code values assigned to this field depends on the 1971-1976 CD comparability indicator.
a For CDs which are comparable between 1971 and 1976 (ie with comparability code of O or 1), the 1971 code is used;
b For 1971 CDs which have been split into parts for 1976, the 1971. code is used;
c For 1971 CDs which have been amalgamated for 1976, the 1971 code corresponding to the lowest field-code* value is used; where the 1971 CDs amalgamated include 1 or more confidential CDs the 1971 code corresponding to the lowest field-code* of the nonconfidential CDs is used;
d For CDs which are noncomparable and not in the above categories the code corresponding to the closest 1971 field code has been used.
* Note: field code was assigned for collection purposes in 1971 and is made up of a 6 digit numeric code comprising Census Division (2 digits), Census Subdivision (2 digits) and Collector's District (1971 CD Code) (2 digits).