Census Block 90

IDENTIFIERS

CCR-ID	NAACCR ID
e1570	None. State Requestor

DESCRIPTION

Block Groups (BG's) are defined within the Census Tract. They are a set of blocks sharing the same first digit within a Census Tract. For example, BG 3 within a particular Census Tract would include any blocks numbered between 301 and 399.

LEVELS

Tumors

LENGTH

ALLOWABLE VALUES

er028 Census Tract Block 1990

Any numeric or blank (not tracted).

SOURCE

Set to blank

UPDATE

Whenever Census Tract 1970/80/90 is changed, Census_Block_90 must be changed accordingly.

If Census Tract 1970/80/90 is untracted then Census_Block_90 must be blank.

If Census Tract 1970/80/90 is tracted and a Census_Block_90 tracted code is available (whether through geocoding, linking a tumor with a tracted address, or manual entry of a Census_Block_90 value) the available Census_Block_90 code should be used.

However, if Census Tract 1970/80/90 is tracted but Census_Block_90 is not available Census_Block_90 should be set to blank.