On May 16, 2013, the Board of Governors of the Federal Reserve System (Board) issued CA Letter 13-8 Guidance on the Use of 2010 Census Data in Fair Lending Examinations. The letter discusses the three changes related to the Census Bureau’s release of the 2010 decennial census data that affects fair lending examinations. Specifically, the letter notes that 1) there are changes to the census tracts, 2) the source of detailed population and housing data is now based on the American Community Survey (ACS) rather than the census, and 3) the Federal Financial Institution’s Examination Council (FFIEC) will now update the census data every five years, rather than on a decennial basis.