---
kind: "unit"
title: "39"
title_heading: "Postal Service"
key: "ptIV/ch36/schVI"
level: "subchapter"
label: "Subchapter VI"
heading: "General"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/39/ptIV-ch36-schVI"
sections_count: 6
---

# Subchapter VI — General

Title 39 — Postal Service › Part IV — Mail Matter › Chapter 36 — Postal Rates, Classes, and Services

## Sections

- [§3681. Reimbursement](/usc/39/3681.md)
- [§3682. Size and weight limits](/usc/39/3682.md)
- [§3683. Uniform rates for books; films; other materials](/usc/39/3683.md)
- [§3684. Limitations](/usc/39/3684.md)
- [§3685. Filing of information relating to periodical publications](/usc/39/3685.md)
- [§3686. Bonus authority](/usc/39/3686.md)