---
kind: "unit"
title: "31"
title_heading: "Money and Finance"
key: "stIV/ch51/schI"
level: "subchapter"
label: "Subchapter I"
heading: "Monetary System"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/31/stIV-ch51-schI"
sections_count: 3
---

# Subchapter I — Monetary System

Title 31 — Money and Finance › Subtitle IV — Money › Chapter 51 — Coins and Currency

## Sections

- [§5101. Decimal system](/usc/31/5101.md)
- [§5102. Standard weight](/usc/31/5102.md)
- [§5103. Legal tender](/usc/31/5103.md)
