Īlthough Title 31, also known as the Bank Secrecy Act, was originally focused on financial institutions, criminal use of banking services located within casinos created a need for additional regulations that were specific to casinos.
Casinos in the United States which generate more than $1,000,000 in annual gaming revenues are required to report certain currency transactions to assist the Financial Crimes Enforcement Network (FinCEN) of the Internal Revenue Service (IRS) in uncovering money laundering activities and other financial crimes (including terrorist financing).