---
kind: "unit"
title: "17"
title_heading: "Commodity and Securities Exchanges"
key: "chI/part166"
level: "part"
label: "Part 166"
heading: "Customer Protection Rules"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/17/chI-part166"
sections_count: 5
---

# Part 166 — Customer Protection Rules

Title 17 C.F.R. — Commodity and Securities Exchanges › Chapter I — Commodity Futures Trading Commission

## Sections

- [§166.1. Definitions.](/cfr/17/166.1.md)
- [§166.2. Authorization to trade.](/cfr/17/166.2.md)
- [§166.3. Supervision.](/cfr/17/166.3.md)
- [§166.4. Branch offices.](/cfr/17/166.4.md)
- [§166.5. Dispute settlement procedures.](/cfr/17/166.5.md)