17 CFR § 166.1 - Definitions.

---
identifier: "/us/cfr/t17/s166.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "17 CFR § 166.1 - Definitions."
title_number: 17
title_name: "Commodity and Securities Exchanges"
section_number: "166.1"
section_name: "Definitions."
chapter_name: "COMMODITY FUTURES TRADING COMMISSION"
part_number: "166"
part_name: "CUSTOMER PROTECTION RULES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "7 U.S.C. 1a, 2, 6b, 6c, 6d, 6g, 6h, 6k, 6l, 6o, 7, 12a, 21, and 23, as amended by the Commodity Futures Modernization Act of 2000, appendix E of Pub. L. 106-554, 114 Stat. 2763 (2000)."
cfr_part: "166"
---


# 166.1 Definitions.

(a) The term *Commission registrant* as used in this part means any person who is registered or required to be registered with the Commission pursuant to the Act or any rule, regulation, or order thereunder.

(b) [Reserved]

(c) The term *customer* as used in this part means any person trading, intending to trade, or receiving or seeking advice concerning any commodity interest, including any existing or prospective client or subscriber of a commodity trading advisor or existing or prospective participant in a commodity pool, but the term does not include a person who is acting in the capacity of a Commission registrant with respect to the trade.

(d) The term *commodity account* as used in this part means the account of a customer in which any commodity interest is, or is intended to be, traded.

[43 FR 31886, July 24, 1978, as amended at 46 FR 54535, Nov. 3, 1981; 52 FR 29003, Aug. 5, 1987; 72 FR 63979, Nov. 14, 2007]