---
kind: "unit"
title: "39"
title_heading: "Postal Service"
key: "chI/subchE/part320"
level: "part"
label: "Part 320"
heading: "Suspension of the Private Express Statutes"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/39/chI-subchE-part320"
sections_count: 9
---

# Part 320 — Suspension of the Private Express Statutes

Title 39 C.F.R. — Postal Service › Chapter I — United States Postal Service › Subchapter E — Restrictions on Private Carriage of Letters

## Sections

- [§320.1. Definitions.](/cfr/39/320.1.md)
- [§320.2. Suspension for certain data processing materials.](/cfr/39/320.2.md)
- [§320.3. Operations under suspension for certain data processing materials.](/cfr/39/320.3.md)
- [§320.4. Suspension for certain letters of college and university organizations.](/cfr/39/320.4.md)
- [§320.5. Suspension for certain international-ocean carrier-related documents.](/cfr/39/320.5.md)
- [§320.6. Suspension for extremely urgent letters.](/cfr/39/320.6.md)
- [§320.7. Suspension for advertisements accompanying parcels or periodicals.](/cfr/39/320.7.md)
- [§320.8. Suspension for international remailing.](/cfr/39/320.8.md)
- [§320.9. Revocation or amendment of suspensions.](/cfr/39/320.9.md)