---
kind: "unit"
title: "17"
title_heading: "Commodity and Securities Exchanges"
key: "chIV/subchB"
level: "subchap"
label: "Subchapter B"
heading: "Regulations under Title Ii of the Government Securities Act of 1986"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/17/chIV-subchB"
sections_count: 5
---

# Subchapter B — Regulations under Title Ii of the Government Securities Act of 1986

Title 17 C.F.R. — Commodity and Securities Exchanges › Chapter IV — Department of the Treasury

## Contents

- [Part 450 — Custodial Holdings of Government Securities by Depository Institutions](/cfr/17/chIV-subchB-part450.md)
- [Part 451-499 — Parts 451-499 [reserved]](/cfr/17/chIV-subchB-part451-499.md)