This rule makes two revisions to FHA's regulations governing its single family adjustable rate mortgage (ARM) program. The regulatory changes by this rule would align FHA interest rate adjustment and disclosure requirements with the revised interest rate adjustment date and the requirements for notifying mortgagors of ARM adjustments in the regulations implementing the Truth in Lending Act (TILA) (referred to as Regulation Z), as recently revised by the Consumer Financial Protection Bureau (CFPB). The first  amendment requires that an interest rate adjustment resulting in a corresponding change to the mortgagor's monthly payment be based on the most recent index value available 45 days before the date of the rate adjustment. The point in time that the new index value is established is called the "look-back" period. FHA's current regulations provide for a 30-day look-back period. The second amendment requires that the mortgagee of an FHA-insured ARM comply with the disclosure and notification requirements of Regulation Z, including at least a 60-day advance notice of an adjustment to a mortgagor's monthly payment. FHA's current regulations provide for notification 25 days in advance of an adjustment to a mortgagor's monthly payment.