Census Tr Cert 1970/80/90

IDENTIFIERS

CCR-ID	NAACCR ID
E1016	364

Flag which indicates the basis of assignment of the census tract.

Note: Codes 1-5 and 9 are usually assigned by a geocoding vendor, while code 6 is usually assigned through a special effort by the central registry.

Tumors

1	Census tract based on complete and valid street address of residence
2	Census tract based on residence zip + 4
3	Census tract based on residence zip + 2
4	Census tract based on residence zip only
5	Census tract based on zip of post office box
6	Census tract/BNA based on residence city where city has only one census tract, or based on residence ZIP code where ZIP code has only one census tract
9	Not assigned, geocoding attempted
Blank	Not assigned, geocoding not attempted

Set to blank for new cases.

Whenever Census Tract 1970/80/90 is changed, Census Tr Cert 1970/80/90 must be changed accordingly:

1	If Census Tract 1970/80/90 is 999996 or 999997 (waiting for geocoding), then Census Tr Cert 1970/80/90 must be set to blank.
2	If Census Tract 1970/80/90 cannot be tracted (999993-999995 or 999998-999999) then Census Tr Cert 1970/80/90 must be 9.
3	If Census Tract 1970/80/90 is tracted and a Census Tr Cert 1970/80/90 code is available (whether through geocoding, linking a tumor with a tracted address, or manual entry of a Census Tr Cert 1970/80/90 value) the available Census Tr Cert 1970/80/90 code should be used.
4	If Census Tract 1970/80/90 is tracted, but Census Tr Certainty 1970/80/90 is not available, Census Tract 1970/80/90 should be set to 999996 and Census Tr Certainty 1970/80/90 should be set to blank

Yes

1/1/99	New field added to the data set; Initial values generated using the above UPDATE rules.
3/15/00	Name changed from CENSUS-CERTAINTY to Census_Cert_90 because of Year 2000 census.
7/27/05	New Allowable Value code 6 added to Err #205 for 2006 data changes.
2010	CCR name (Census Cert 90) changed to match NAACCR name. Added IF352.
3/14/2011	2011 Data Changes: Updated definition of Code 9 (was Unable to assign census tract based on available information) and blank (Applicable (e.g., census tracting not yet attempted) per NAACCR 12.1.
9/26/2011	Consolidation logic number 4 was modified. Was: Census Tract 1970/80/90 is tracted, but Census Tr Cert 1970/80/90 is not available, Census Tr Cert 1970/80/90 should be set to 1.