The Office of the Comptroller of the Currency (“OCC”) published Bulletin 2019-12 to inform national banks, federal savings associations, and federal branches and agencies about key data fields that the OCC believes examiners will use to test and validate the accuracy of HMDA data collected beginning in 2018. This Bulletin lays out key data fields for lenders who are required to report all data, as well as those that qualify for a partial exemption. The OCC has also rescinded Bulletin 2017-41 on the same topic.