This excerpt taken from the STI 8-K filed Dec 21, 2006.
Repayment at the Option of the Holder
This Note may be subject to repayment at the option of the holder hereof in accordance with the terms hereof on any Holders Optional Repayment Date(s), if any, specified on the face hereof (or, if this Note is in global form, in the Pricing Supplement). If no Holders Optional Repayment Date is specified on the face hereof (or, if this Note is in global form, in the Pricing Supplement), this Note will not be repayable at the option of the holder hereof prior to the Maturity Date. On any Holders Optional Repayment Date, this Note will be repayable in whole or in part in increments of US$1,000 (or, if the Specified Currency indicated on the face hereof is other than the U.S. dollar, in such Authorized Denominations specified on the face hereof (or, if this Note is in global form, in the Pricing Supplement)) at the option of the holder hereof at the repayment price equal to 100% of the principal amount to be repaid, together with accrued and unpaid interest hereon payable at the applicable rate borne by this Note to, but excluding, the date of repayment; provided, however, that, in the event of repayment of this Note in part only, the unrepaid portion hereof shall be an Authorized Denomination specified on the face hereof (or, if this Note is in global form, in the Pricing Supplement). For this Note to be repaid in whole or in part at the option of the holder hereof on a Holders Optional Repayment Date, this Note must be delivered, with the form entitled Option to Elect Repayment attached hereto duly completed, to the Domestic Paying Agent, the London Paying Agent or the Irish Paying Agent (as appropriate in accordance with such attached form) at the address set forth on such form or at such other address which the Bank shall from time to time notify the holders of the Notes not more than 60 nor less than 30 days prior to such Holders Optional Repayment Date. In the event of repayment of this Note in part only, a new Note for the unrepaid portion hereof shall be issued in the name of the holder hereof upon the surrender hereof, or, where applicable, an appropriate notation will be made on the schedule attached hereto for such notations. Exercise of such repayment option by the holder hereof shall be irrevocable.
Notwithstanding the preceding paragraph, if this Note is a Subordinated Note, to the extent then required under or pursuant to applicable laws or regulations (including, without limitation, applicable capital regulations), this Note may not be repaid at the option of the holder pursuant to the preceding paragraph, without the prior written consent of the Federal Reserve Board and any other bank supervisory authority having jurisdiction over the Bank and requiring such approval. The Bank agrees to apply to the Federal Reserve Board and any such other bank supervisory authorities for any such prior written consent.