---
kind: "unit"
title: "31"
title_heading: "Money and Finance: Treasury"
key: "subtB/chI"
level: "chapter"
label: "Chapter I"
heading: "Monetary Offices, Department of the Treasury"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/31/subtB-chI"
sections_count: 95
---

# Chapter I — Monetary Offices, Department of the Treasury

Title 31 C.F.R. — Money and Finance: Treasury › Subtitle B — Regulations Relating to Money and Finance

## Contents

- [Part 51-55 — Parts 51-55 [reserved]](/cfr/31/subtB-chI-part51-55.md)
- [Part 56 — Domestic Gold and Silver Operations Sale of Silver](/cfr/31/subtB-chI-part56.md)
- [Part 82 — 5-Cent and One-Cent Coin Regulations](/cfr/31/subtB-chI-part82.md)
- [Part 91 — Regulations Governing Conduct in or on the Bureau of the Mint Buildings and Grounds](/cfr/31/subtB-chI-part91.md)
- [Part 92 — United States Mint Operations and Procedures](/cfr/31/subtB-chI-part92.md)
- [Part 100 — Exchange of Paper Currency and Coin](/cfr/31/subtB-chI-part100.md)
- [Part 101 — Mitigation of Forfeiture of Counterfeit Gold Coins](/cfr/31/subtB-chI-part101.md)
- [Part 123 — Part 123 [reserved]](/cfr/31/subtB-chI-part123.md)
- [Part 128 — Reporting of International Capital and Foreign-Currency Transactions and Positions](/cfr/31/subtB-chI-part128.md)
- [Part 129 — Portfolio Investment Survey Reporting](/cfr/31/subtB-chI-part129.md)
- [Part 130-131 — Parts 130-131 [reserved]](/cfr/31/subtB-chI-part130-131.md)
- [Part 132 — Prohibition on Funding of Unlawful Internet Gambling](/cfr/31/subtB-chI-part132.md)
- [Part 133-147 — Parts 133-147 [reserved]](/cfr/31/subtB-chI-part133-147.md)
- [Part 148 — Qualified Financial Contracts Recordkeeping Related to the Fdic Orderly Liquidation Authority](/cfr/31/subtB-chI-part148.md)
- [Part 149 — Calculation of Maximum Obligation Limitation](/cfr/31/subtB-chI-part149.md)
- [Part 150 — Financial Research Fund](/cfr/31/subtB-chI-part150.md)
- [Part 151 — Xxx](/cfr/31/subtB-chI-part151.md)
- [Part 152-199 — Parts 152-199 [reserved]](/cfr/31/subtB-chI-part152-199.md)