12 C.F.R. § 34.22 Index.
Title 12 - Banks and Banking
If a national bank makes an ARM loan to which 12 CFR 226.19(b) applies (i.e., the annual percentage rate of a loan may increase after consummation, the term exceeds one year, and the consumer's principal dwelling secures the indebtedness), the loan documents must specify an index to which changes in the interest rate will be linked. This index must be readily available to, and verifiable by, the borrower and beyond the control of the bank. A national bank may use as an index any measure of rates of interest that meets these requirements. The index may be either single values of the chosen measure or a moving average of the chosen measure calculated over a specified period. A national bank also may increase the interest rate in accordance with applicable loan documents specifying the amount of the increase and the times at which, or circumstances under which, it may be made. A national bank may decrease the interest rate at any time.
Title 12: Banks and Banking
PART 34—REAL ESTATE LENDING AND APPRAISALS
Subpart B—Adjustable-Rate Mortgages
§ 34.22 Index.