You simply send them a new full CD disclosure prior to maturity in accordance with the timing requirements:
1030.5(b)(1) Maturities of longer than one year. If the maturity is longer than one year, the institution shall provide account disclosures set forth in Sec. 1030.4(b) of this part for the new account, along with the date the existing account matures. If the interest rate and annual percentage yield that will be paid for the new account are unknown when disclosures are provided, the institution shall state that those rates have not yet been determined, the date when they will be determined, and a telephone number consumers may call to obtain the interest rate and the annual percentage yield that will be paid for the new account.
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