census tract/BNA losing area and appending the special suffix. The census tract/BNA losing area also was renumbered by assigning the special suffix (see Figure 10-3).
Figure 10-3. Creating a New Census Tract or BNA for Boundary Resolution
The Census Bureau would not expand the area of a census tract/BNA when resolving a census tract/BNA boundary discrepancy if such a revision caused the census tract/BNA to include a census block that was discontiguous with other blocks in the same block group or created duplicate 1990 census block numbers. In Example 1, Block 704 was included in Census Tract 10.01, even though the approved census tract plan had included it in Census Tract 10.02. Because Census Tract 10.02 already contains a Block 704, the Census Bureau could not expand Census Tract 10.02 to include a second Block 704.
In resolving this type of census tract/BNA boundary discrepancy, the Census Bureau created a separate new census tract/BNA comprised of the block(s) in question. In Example 2, it created the new Census Tract 10.97, comprised of Block 704 from Census Tract 10.01. Additionally, the Census Bureau renumbered Census Tract 10.01 as 10.98 (because 10.01 is the census tract that lost area). Census Tract 10.02 was not renumbered because nothing in it changed.
