Is it possible that within a tract there are streets that are mod and some are middle? But then the tract is coded overall middle? is there a way to get a further breakdown of a tract to show that streets A, B and C are, in fact, mod income compared to the rest of the tracts?

I've never heard of this. I always thought that the entire tract is assigned an income level.

Geocode an address using the FFIEC's geocoding system. Once you get the result, click on the button that says "Get Census Demographic." Once on that next page,you will see it will shows tract income level. At the bottom of the box, click on the link for income data and you will see more information but it is based on the tract.

We have been through this in a recent thread You are trying to get down to block numbers. They are no longer used in CRA and HMDA. They were phased out a number of years ago.

This approach is sometimes used in fair lending proxies.

What has set you off on this hunt?

Bonds purchased years ago. At the time we were able to cite the blocks and therefore drill down to the % of the bonds used for moderate income. This was approved by the examiners for years. This time they are going to the FFIEC site which only shows that the entire tract is middle. They want to now reject the bonds even though they approved them for YEARS. I thought they tract reference should be as it was when the bonds were first issued/purchased and not how the imporvements have brought the area in line with middle rather than a high assessment. Need some ideas on what to do. Way before my time and the previous CRA officcer did not leave the source docs for the block info.