Then usable tread depth is compared to remaining tread depth in order to calculate tread wear percentages. For example, a tire that started with 10/32 of original tread depth and has worn off 4/32 (down to 6/32 of remaining tread depth) is 50% worn.
1 If you know the census tract number: Use the IRS list of 2014 Qualified Census Tracts by county. 2  If you have a street address: Visit HUD's interactive QCT Map and enter the property address to view what Census Tract the property is located.
Please select the appropriate activity year for the address being geocoded. The tract definitions for 2015, and 2016 data are based on the 2010 Census, for 2017 data is based on the 2015 Census. It is critical that the correct activity year is selected when using the FFIEC Geocoding System. Census Updates.