(a) In general. For purposes of this subpart, a covered company must calculate its net credit exposure to a counterparty by adjusting its gross credit exposure to that counterparty in accordance with the rules set forth in this section.

(b) Eligible collateral. (1) In computing its net credit exposure to a counterparty for any credit transaction other than a securities financing transaction, a covered company must reduce its gross credit exposure on the transaction by the adjusted market value of any eligible collateral.

(2) A covered company that reduces its gross credit exposure to a counterparty as required under paragraph (b)(1) of this section must include the adjusted market value of the eligible collateral, when calculating its gross credit exposure to the collateral issuer.

(3) Notwithstanding paragraph (b)(2) of this section, a covered company's gross credit exposure to a collateral issuer under this paragraph (b) is limited to:

(i) Its gross credit exposure to the counterparty on the credit transaction, or

(ii) In the case of an exempt counterparty, the gross credit exposure that would have been attributable to that exempt counterparty on the credit transaction if valued in accordance with § 238.153(a).

(c) Eligible guarantees. (1) In calculating net credit exposure to a counterparty for any credit transaction, a covered company must reduce its gross credit exposure to the counterparty by the amount of any eligible guarantee from an eligible guarantor that covers the transaction.

(2) A covered company that reduces its gross credit exposure to a counterparty as required under paragraph (c)(1) of this section must include the amount of eligible guarantees when calculating its gross credit exposure to the eligible guarantor.

(3) Notwithstanding paragraph (c)(2) of this section, a covered company's gross credit exposure to an eligible guarantor with respect to an eligible guarantee under this paragraph (c) is limited to:

(i) Its gross credit exposure to the counterparty on the credit transaction prior to recognition of the eligible guarantee, or

(ii) In the case of an exempt counterparty, the gross credit exposure that would have been attributable to that exempt counterparty on the credit transaction prior to recognition of the eligible guarantee if valued in accordance with § 238.153(a).

(d) Eligible credit and equity derivatives. (1) In calculating net credit exposure to a counterparty for a credit transaction under this section, a covered company must reduce its gross credit exposure to the counterparty by:

(i) In the case of any eligible credit derivative from an eligible guarantor, the notional amount of the eligible credit derivative; or

(ii) In the case of any eligible equity derivative from an eligible guarantor, the gross credit exposure amount to the counterparty (calculated in accordance with § 238.153(a)(7)).

(2)(i) A covered company that reduces its gross credit exposure to a counterparty as provided under paragraph (d)(1) of this section must include, when calculating its net credit exposure to the eligible guarantor, including in instances where the underlying credit transaction would not be subject to the credit limits of § 238.152 (for example, due to an exempt counterparty), either

(A) In the case of any eligible credit derivative from an eligible guarantor, the notional amount of the eligible credit derivative; or

(B) In the case of any eligible equity derivative from an eligible guarantor, the gross credit exposure amount to the counterparty (calculated in accordance with § 238.153(a)(7)).

(ii) Notwithstanding paragraph (d)(2)(i) of this section, in cases where the eligible credit derivative or eligible equity derivative is used to hedge covered positions that are subject to the Board's market risk rule (12 CFR part 217, subpart F) and the counterparty on the hedged transaction is not a financial entity, the amount of credit exposure that a company must recognize to the eligible guarantor is the amount that would be calculated pursuant to § 238.153(a).

(3) Notwithstanding paragraph (d)(2) of this section, a covered company's gross credit exposure to an eligible guarantor with respect to an eligible credit derivative or an eligible equity derivative this paragraph (d) is limited to:

(i) Its gross credit exposure to the counterparty on the credit transaction prior to recognition of the eligible credit derivative or the eligible equity derivative, or

(ii) In the case of an exempt counterparty, the gross credit exposure that would have been attributable to that exempt counterparty on the credit transaction prior to recognition of the eligible credit derivative or the eligible equity derivative if valued in accordance with § 238.153(a).

(e) Other eligible hedges. In calculating net credit exposure to a counterparty for a credit transaction under this section, a covered company may reduce its gross credit exposure to the counterparty by the face amount of a short sale of the counterparty's debt security or equity security, provided that:

(1) The instrument in which the covered company has a short position is junior to, or pari passu with, the instrument in which the covered company has the long position; and

(2) The instrument in which the covered company has a short position and the instrument in which the covered company has the long position are either both treated as trading or available-for-sale exposures or both treated as held-to-maturity exposures.

(f) Unused portion of certain extensions of credit. (1) In computing its net credit exposure to a counterparty for a committed credit line or revolving credit facility under this section, a covered company may reduce its gross credit exposure by the amount of the unused portion of the credit extension to the extent that the covered company does not have any legal obligation to advance additional funds under the extension of credit and the used portion of the credit extension has been fully secured by eligible collateral.

(2) To the extent that the used portion of a credit extension has been secured by eligible collateral, the covered company may reduce its gross credit exposure by the adjusted market value of any eligible collateral received from the counterparty, even if the used portion has not been fully secured by eligible collateral.

(3) To qualify for the reduction in net credit exposure under this paragraph, the credit contract must specify that any used portion of the credit extension must be fully secured by the adjusted market value of any eligible collateral.

(g) Credit transactions involving exempt counterparties. (1) A covered company's credit transactions with an exempt counterparty are not subject to the requirements of this subpart, including but not limited to § 238.152.

(2) Notwithstanding paragraph (g)(1) of this section, in cases where a covered company has a credit transaction with an exempt counterparty and the covered company has obtained eligible collateral from that exempt counterparty or an eligible guarantee or eligible credit or equity derivative from an eligible guarantor, the covered company must include (for purposes of this subpart) such exposure to the issuer of such eligible collateral or the eligible guarantor, as calculated in accordance with the rules set forth in this section, when calculating its gross credit exposure to that issuer of eligible collateral or eligible guarantor.

(h) Currency mismatch adjustments. For purposes of calculating its net credit exposure to a counterparty under this section, a covered company must apply, as applicable:

(1) When reducing its gross credit exposure to a counterparty resulting from any credit transaction due to any eligible collateral and calculating its gross credit exposure to an issuer of eligible collateral, pursuant to paragraph (b) of this section, the currency mismatch adjustment approach of § 217.37(c)(3)(ii) of this chapter; and

(2) When reducing its gross credit exposure to a counterparty resulting from any credit transaction due to any eligible guarantee, eligible equity derivative, or eligible credit derivative from an eligible guarantor and calculating its gross credit exposure to an eligible guarantor, pursuant to paragraphs (c) and (d) of this section, the currency mismatch adjustment approach of § 217.36(f) of this chapter.

(i) Maturity mismatch adjustments. For purposes of calculating its net credit exposure to a counterparty under this section, a covered company must apply, as applicable, the maturity mismatch adjustment approach of § 217.36(d) of this chapter:

(1) When reducing its gross credit exposure to a counterparty resulting from any credit transaction due to any eligible collateral or any eligible guarantees, eligible equity derivatives, or eligible credit derivatives from an eligible guarantor, pursuant to paragraphs (b) through (d) of this section, and

(2) In calculating its gross credit exposure to an issuer of eligible collateral, pursuant to paragraph (b) of this section, or to an eligible guarantor, pursuant to paragraphs (c) and (d) of this section; provided that

(3) The eligible collateral, eligible guarantee, eligible equity derivative, or eligible credit derivative subject to paragraph (i)(1) of this section:

(i) Has a shorter maturity than the credit transaction;

(ii) Has an original maturity equal to or greater than one year;

(iii) Has a residual maturity of not less than three months; and

(iv) The adjustment approach is otherwise applicable.