(a) External long-term debt requirement. Except as provided under paragraph (c) of this section, a global systemically important BHC must maintain an outstanding eligible external long-term debt amount that is no less than the amount equal to the greater of:

(1) The global systemically important BHC's total risk-weighted assets multiplied by the sum of 6 percent plus the global systemically important BHC's GSIB surcharge (expressed as a percentage); and

(2) 4.5 percent of the global systemically important BHC's total leverage exposure.

(b) Outstanding eligible external long-term debt amount.

(1) A global systemically important BHC's outstanding eligible external long-term debt amount is the sum of:

(i) One hundred (100) percent of the amount due to be paid of unpaid principal of the outstanding eligible debt securities issued by the global systemically important BHC in greater than or equal to 730 days (two years);

(ii) Fifty (50) percent of the amount due to be paid of unpaid principal of the outstanding eligible debt securities issued by the global systemically important BHC in greater than or equal to 365 days (one year) and less than 730 days (two years); and

(iii) Zero (0) percent of the amount due to be paid of unpaid principal of the outstanding eligible debt securities issued by the global systemically important BHC in less than 365 days (one year).

(2) For purposes of paragraph (b)(1) of this section, the date on which principal is due to be paid on an outstanding eligible debt security is calculated from the earlier of:

(i) The date on which payment of principal is required under the terms governing the instrument, without respect to any right of the holder to accelerate payment of principal; and

(ii) The date the holder of the instrument first has the contractual right to request or require payment of the amount of principal, provided that, with respect to a right that is exercisable on one or more dates that are specified in the instrument only on the occurrence of an event (other than an event of a receivership, insolvency, liquidation, or similar proceeding of the global systemically important BHC, or a failure of the global systemically important BHC to pay principal or interest on the instrument when due), the date for the outstanding eligible debt security under this paragraph (b)(2)(ii) will be calculated as if the event has occurred.

(3) After notice and response proceedings consistent with 12 CFR part 263, subpart E, the Board may order a global systemically important BHC to exclude from its outstanding eligible long-term debt amount any debt security with one or more features that would significantly impair the ability of such debt security to take losses.

(c) Redemption and repurchase. A global systemically important BHC may not redeem or repurchase any outstanding eligible debt security without the prior approval of the Board if, immediately after the redemption or repurchase, the global systemically important BHC would not meet its external long-term debt requirement under paragraph (a) of this section, or its external total loss-absorbing capacity requirement under §252.63(a).