---
kind: "unit"
title: "39"
title_heading: "Postal Service"
key: "chI/subchE"
level: "subchap"
label: "Subchapter E"
heading: "Restrictions on Private Carriage of Letters"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/39/chI-subchE"
sections_count: 16
---

# Subchapter E — Restrictions on Private Carriage of Letters

Title 39 C.F.R. — Postal Service › Chapter I — United States Postal Service

## Contents

- [Part 310 — Enforcement of the Private Express Statutes](/cfr/39/chI-subchE-part310.md)
- [Part 320 — Suspension of the Private Express Statutes](/cfr/39/chI-subchE-part320.md)