I would continue to use the 2021 tracts until the FFIEC publishes the new tracts and their income class. At that time I would change the file immediately. For sure the AA maps will need to be updated. Tract size, tract location, tract name, tract income class are all subject to change since this is based on the decennial census. Every bank should post new AA maps in their public file as soon as the new tracts and demographic are published.
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