(a) Securitization risk weight approaches. Except as provided in this section or in §628.41:

(1) A System institution must deduct from CET1 capital any after-tax gain-on-sale resulting from a securitization (as provided in §628.22) and must apply a 1,250-percent risk weight to the portion of a credit-enhancing interest-only strip (CEIO) that does not constitute after-tax gain-on-sale.

(2) If a securitization exposure does not require deduction under paragraph (a)(1) of this section, a System institution may assign a risk weight to the securitization exposure using the simplified supervisory formula approach (SSFA) in accordance with §628.43(a) through (d) and subject to the limitation under paragraph (e) of this section. Alternatively, a System institution may assign a risk weight to the purchased securitization exposure using the gross-up approach in accordance with §628.43(e), provided however, that such System institution must apply either the SSFA or the gross-up approach consistently across all of its securitization exposures, except as provided in paragraphs (a)(1), (3), and (4) of this section.

(3) If a securitization exposure does not require deduction under paragraph (a)(1) of this section and the System institution cannot or chooses not to apply the SSFA or the gross-up approach to the exposure, the System institution must assign a risk weight to the exposure as described in §628.44.

(4) If a securitization exposure is a derivative contract (other than protection provided by a System institution in the form of a credit derivative) that has a first priority claim on the cash flows from the underlying exposures (notwithstanding amounts due under interest rate or currency derivative contracts, fees due, or other similar payments), a System institution may choose to set the risk-weighted asset amount of the exposure equal to the amount of the exposure as determined in paragraph (c) of this section.

(b) Total risk-weighted assets for securitization exposures. A System institution's total risk-weighted assets for securitization exposures equals the sum of the risk-weighted asset amount for securitization exposures that the System institution risk weights under paragraph (a)(1) of this section, §628.41(c), and §628.43, §628.44, or §628.45, except as provided in paragraphs (e) through (j) of this section, as applicable.

(c) Exposure amount of a securitization exposure.

(1) [Reserved]

(2) On-balance sheet securitization exposures (available-for-sale or held-to-maturity securities). The exposure amount of an on-balance sheet securitization exposure that is an available-for-sale or held-to-maturity security is the System institution's carrying value (including net accrued but unpaid interest and fees), less any net unrealized gains on the exposure and plus any net unrealized losses on the exposure.

(3) Off-balance sheet securitization exposures.

(i) Except as provided in paragraph (j) of this section, the exposure amount of an off-balance sheet securitization that is not a repo-style transaction, an eligible margin loan, a cleared transaction (other than a credit derivative), or an OTC derivative contract (other than a credit derivative) is the notional amount of the exposure.

(ii)-(iii) [Reserved]

(4) Repo-style transactions, eligible margin loans, and derivative contracts. The exposure amount of a securitization exposure that is a repo-style transaction, an eligible margin loan, or a derivative contract (other than a credit derivative) is the exposure amount of the transaction as calculated under §628.34 or §628.37 as applicable.

(d) Overlapping exposures. If a System institution has multiple securitization exposures that provide duplicative coverage to the underlying exposures of a securitization, the System institution is not required to hold duplicative risk-based capital against the overlapping position. Instead, the System institution may apply to the overlapping position the applicable risk-based capital treatment that results in the highest risk-based capital requirement.

(e) Implicit support. If a System institution provides support to a securitization in excess of the System institution's contractual obligation to provide credit support to the securitization (implicit support):

(1) The System institution must include in risk-weighted assets all of the underlying exposures associated with the securitization as if the exposures had not been securitized and must deduct from CET1 capital (pursuant to §628.22) any after-tax gain-on-sale resulting from the securitization; and

(2) The System institution must disclose publicly:

(i) That it has provided implicit support to the securitization; and

(ii) The risk-based capital impact to the System institution of providing such implicit support.

(f) Undrawn portion of an eligible servicer cash advance facility.

(1) Notwithstanding any other provision of this subpart, a System institution that is a servicer under an eligible servicer cash advance facility is not required to hold risk-based capital against potential future cash advance payments that it may be required to provide under the contract governing the facility.

(2) For a System institution that acts as a servicer, the exposure amount for a servicer cash advance facility that is not an eligible cash advance facility is equal to the amount of all potential future cash payments that the System institution may be contractually required to provide during the subsequent 12-month period under the governing facility.

(g) Interest-only mortgage-backed securities. Regardless of any other provisions of this subpart, the risk weight for a non-credit-enhancing interest-only mortgage-backed security may not be less than 100 percent.

(h) Small-business loans and leases on personal property transferred with retained contractual exposure.

(1) Regardless of any other provisions of this subpart, a System institution that has transferred small-business loans and leases on personal property (small-business obligations) must include in risk-weighted assets only its contractual exposure to the small-business obligations if all the following conditions are met:

(i) The transaction must be treated as a sale under GAAP.

(ii) The System institution establishes and maintains, pursuant to GAAP, a non-capital reserve sufficient to meet the System institution's reasonably estimated liability under the contractual obligation.

(iii) The small business obligations are to businesses that meet the criteria for a small-business concern established by the Small Business Administration under section 3(a) of the Small Business Act.

(iv) [Reserved]

(2) The total outstanding amount of contractual exposure retained by a System institution on transfers of small-business obligations receiving the capital treatment specified in paragraph (h)(1) of this section cannot exceed 15 percent of the System institution's total capital.

(3) If a System institution exceeds the 15-percent capital limitation provided in paragraph (h)(2) of this section, the capital treatment under paragraph (h)(1) of this section will continue to apply to any transfers of small-business obligations with retained contractual exposure that occurred during the time that the System institution did not exceed the capital limit.

(4) [Reserved]

(i)-(ii) [Reserved]

(i) Nth-to-default credit derivatives—

(1) Protection provider. A System institution must assign a risk weight to an nth-to-default credit derivative in accordance with FCA guidance.

(2)-(3) [Reserved]

(4) Protection purchaser—

(i) First-to-default credit derivatives. A System institution that obtains credit protection on a group of underlying exposures through a first-to-default credit derivative that meets the rules of recognition of §628.36(b) must determine its risk-based capital requirement for the underlying exposures as if the System institution synthetically securitized the underlying exposure with the smallest risk-weighted asset amount and had obtained no credit risk mitigant on the other underlying exposures. A System institution must calculate a risk-based capital requirement for counterparty credit risk according to §628.34 for a first-to-default credit derivative that does not meet the rules of recognition of §628.36(b).

(ii) Second-or-subsequent-to-default credit derivatives.

(A) A System institution that obtains credit protection on a group of underlying exposures through a nth-to-default credit derivative that meets the rules of recognition of §628.36(b) (other than a first-to-default credit derivative) may recognize the credit risk mitigation benefits of the derivative only if:

(1) The System institution also has obtained credit protection on the same underlying exposures in the form of first-through-(n-1)-to-default credit derivatives; or

(2) If n-1 of the underlying exposures have already defaulted.

(B) If a System institution satisfies the requirements of paragraph (i)(4)(ii)(A) of this section, the System institution must determine its risk-based capital requirement for the underlying exposures as if the System institution had only synthetically securitized the underlying exposure with the nth smallest risk-weighted asset amount and had obtained no credit risk mitigant on the underlying exposures.

(C) A System institution must calculate a risk-based capital requirement for counterparty credit risk according to §628.34 for a nth-to-default credit derivative that does not meet the rules of recognition of §628.36(b).

(j) Guarantees and credit derivatives other than nth-to-default credit derivatives—

(1) Protection provider. For a guarantee or credit derivative (other than an nth-to-default credit derivative) provided by a System institution that covers the full amount or a pro rata share of a securitization exposure's principal and interest, the System institution must risk weight the guarantee or credit derivative in accordance with FCA guidance.

(2) Protection purchaser.

(i) A System institution that purchases a guarantee or OTC credit derivative (other than an nth-to-default credit derivative) that is recognized under §628.45 as a credit risk mitigant (including via collateral recognized under §628.37) is not required to compute a separate credit risk capital requirement under §628.31, in accordance with §628.34(c).

(ii) If a System institution cannot, or chooses not to, recognize a purchased credit derivative as a credit risk mitigant under §628.45, the System institution must determine the exposure amount of the credit derivative under §628.34.

(A) If the System institution purchases credit protection from a counterparty that is not a securitization special purpose entity (SPE), the System institution must determine the risk weight for the exposure according to general risk weights under §628.32.

(B) If the System institution purchases the credit protection from a counterparty that is a securitization SPE, the System institution must determine the risk weight for the exposure according to this section, including paragraph (a)(4) of this section for a credit derivative that has a first priority claim on the cash flows from the underlying exposures of the securitization SPE (notwithstanding amounts due under interest rate or currency derivative contracts, fees due, or other similar payments).