17 CFR 240.18a-2: a-2 Capital requirements for major security-based swap participants for which there is not a prudential regulator.

(a) Every major security-based swap participant for which there is not a prudential regulator and is not registered as a broker or dealer pursuant to section 15(b) of the Act (15 U.S.C. 78o(b)) must at all times have and maintain positive tangible net worth.

(b) The term tangible net worth means the net worth of the major security-based swap participant as determined in accordance with generally accepted accounting principles in the United States, excluding goodwill and other intangible assets. In determining net worth, all long and short positions in security-based swaps, swaps, and related positions must be marked to their market value. A major security-based swap participant must include in its computation of tangible net worth all liabilities or obligations of a subsidiary or affiliate that the participant guarantees, endorses, or assumes either directly or indirectly.

(c) Every major security-based swap participant must comply with § 240.15c3-4 as though it were an OTC derivatives dealer with respect to its security-based swap and swap activities, except that § 240.15c3-4(c)(5)(xiii) and (xiv) and (d)(8) and (9) shall not apply.