(a) General. For purposes of section 3(a)(67) of the Act, 15 U.S.C. 78c(a)(67), and § 240.3a67-1, the term substantial counterparty exposure that could have serious adverse effects on the financial stability of the United States banking system or financial markets means a security-based swap position that satisfies either of the following thresholds:

(1) $2 billion in daily average aggregate uncollateralized outward exposure; or

(2) $4 billion in:

(i) Daily average aggregate uncollateralized outward exposure; plus

(ii) Daily average aggregate potential outward exposure.

(b) Calculation. For these purposes, daily average aggregate uncollateralized outward exposure and daily average aggregate potential outward exposure shall be calculated the same way as is prescribed in § 240.3a67-3, except that these amounts shall be calculated by reference to all of the person's security-based swap positions, rather than by reference to a specific major security-based swap category.