1026.20(d)(2)(v) requires the initial ARM notice disclose any limits on the interest rate or payment increases at each interest rate adjustment and over the life of the loan, as applicable.

when a loan Note discloses a ceiling and floor rate for the first rate change and then a different floor and ceiling limit for subsequent rate changes and a interim cap adjustment limit for subsequent changes, are we required to disclose both initial and subsequent rate change limits on the initial notice or can we only disclose initial limits on the initial notice?

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The initial ARM disclosure is to reflect how and when the rate can change during the course of the loan.

You can't just say the how & when the rate can change within the first 5 years (as an example) and ignore any different term changes effective for the next adjustment period(s).