For the purposes of this part:

Activity with a more complex risk profile includes:

Clearing credit default swaps, credit default futures, or derivatives that reference either credit default swaps or credit default futures and

Any other activity designated as such by the Commission pursuant to § 39.33(a)(3).

Back test means a test that compares a derivatives clearing organization's initial margin requirements with historical price changes to determine the extent of actual margin coverage.

Customer means a person trading in any commodity named in the definition of commodity in section 1a(9) of the Act or in § 1.3 of this chapter, or in any swap as defined in section 1a(47) of the Act or in § 1.3 of this chapter; Provided, however, an owner or holder of a house account as defined in this section shall not be deemed to be a customer within the meaning of section 4d of the Act, the regulations that implement sections 4d and 4f of the Act and § 1.35 of this chapter, and such an owner or holder of such a house account shall otherwise be deemed to be a customer within the meaning of the Act and §§ 1.37 and 1.46 of this chapter and all other sections of these rules, regulations, and orders which do not implement sections 4d and 4f of the Act.

Customer account or customer origin means a clearing member account held on behalf of customers, as that term is defined in this section, and which is subject to section 4d(a) or section 4d(f) of the Act.

Depository institution has the meaning set forth in section 19(b)(1)(A) of the Federal Reserve Act (12 U.S.C. 461(b)(1)(A)).

House account or house origin means a clearing member account which is not subject to section 4d(a) or 4d(f) of the Act.

Key personnel means derivatives clearing organization personnel who play a significant role in the operations of the derivatives clearing organization, the provision of clearing and settlement services, risk management, or oversight of compliance with the Act and Commission regulations and orders. Key personnel include, but are not limited to, those persons who are or perform the functions of any of the following: chief executive officer; president; chief compliance officer; chief operating officer; chief risk officer; chief financial officer; chief technology officer; and emergency contacts or persons who are responsible for business continuity or disaster recovery planning or program execution.

Stress test means a test that compares the impact of potential extreme price moves, changes in option volatility, and/or changes in other inputs that affect the value of a position, to the financial resources of a derivatives clearing organization, clearing member, or large trader, to determine the adequacy of the financial resources of such entities.

Subpart C derivatives clearing organization means any derivatives clearing organization, as defined in section 1a(15) of the Act and § 1.3 of this chapter, which:

Is registered as a derivatives clearing organization under section 5b of the Act;

Is not a systemically important derivatives clearing organization; and

Has become subject to the provisions of subpart C of this part, pursuant to § 39.31.

Systemically important derivatives clearing organization means a financial market utility that is a derivatives clearing organization registered under section 5b of the Act, which is currently designated by the Financial Stability Oversight Council to be systemically important and for which the Commission acts as the Supervisory Agency pursuant to 12 U.S.C. 5462(8).

U.S. branch or agency of a foreign banking organization means the U.S. branch or agency of a foreign banking organization as defined in section 1(b) of the International Banking Act of 1978 (12 U.S.C. 3101).

Trust company means a trust company that is a member of the Federal Reserve System, under section 1 of the Federal Reserve Act (12 U.S.C. 221), but that does not meet the definition of depository institution.