Census Cod Sys 1970/80/90

IDENTIFIERS

CCR ID	NAACCR ID
E1015	120

DESCRIPTION

Identified the set of Census Bureau census tract definitions (boundaries) that were used to code the census tract in Census Tract 1970/80/90 for a specific record.

LEVELS

Tumors

LENGTH

1

ALLOWABLE VALUES

Replace or None or use table for lists

0	Not Tracted
1	1970 Census Tract Definitions
2	1980 Census Tract Definitions
3	1990 Census Tract Definitions
Blank	Census Tract 1970/80/90 not coded

SOURCE

See Extract

UPDATE

None

CONSOLIDATED DATA EXTRACT

Generate 3 (1990 Census Tract Definitions) on extract.

INTERFIELD EDITS

None

HISTORICAL CHANGES

8/15/06

Generated item in Volume II added to Volume III with 2007 data changes.