Regulation CC applies to all transaction accounts and generally does not exclude business-purpose deposits. See 12 CFR 229.2(a) (definition of “account”). There are some exceptions, as some of the provisions in the regulation apply only to consumer accounts (such as 12 CFR 229.18(b), the lobby notice required at locations where employees accept consumer deposits).

However, the regulation does not apply to money market accounts, which are not considered deposit accounts under the regulation’s definitions. As explained in the Official Staff Commentary, the “account” definition “does not cover time deposits or savings deposits, including money market deposit accounts, even though they may have limited third party payment powers.” Comment 1, 12 CFR 229.2(a).