---
kind: "unit"
title: "39"
title_heading: "Postal Service"
key: "chI"
level: "chapter"
label: "Chapter I"
heading: "United States Postal Service"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/39/chI"
sections_count: 730
---

# Chapter I — United States Postal Service

Title 39 C.F.R. — Postal Service

## Contents

- [Subchapter A — The Board of Governors of the U.s. Postal Service](/cfr/39/chI-subchA.md)
- [Subchapter B — International Mail](/cfr/39/chI-subchB.md)
- [Subchapter C — Post Office Services [domestic Mail]](/cfr/39/chI-subchC.md)
- [Subchapter D — Organization and Administration](/cfr/39/chI-subchD.md)
- [Subchapter E — Restrictions on Private Carriage of Letters](/cfr/39/chI-subchE.md)
- [Subchapter F — Personnel](/cfr/39/chI-subchF.md)
- [Subchapter G — Postage Programs](/cfr/39/chI-subchG.md)
- [Subchapter H — Procurement System for the U.s. Postal Service: Intellectual Property Rights Other Than Patents](/cfr/39/chI-subchH.md)
- [Subchapter I — Subchapter I [reserved]](/cfr/39/chI-subchI.md)
- [Subchapter J — Postal Service Debt Obligations; Disbursement Postal Money Orders](/cfr/39/chI-subchJ.md)
- [Subchapter K — Environmental Regulations](/cfr/39/chI-subchK.md)
- [Subchapter L — Special Regulations](/cfr/39/chI-subchL.md)
- [Subchapter M — Subchapter M [reserved]](/cfr/39/chI-subchM.md)
- [Subchapter N — Procedures](/cfr/39/chI-subchN.md)