Chapter 36 - POSTAL RATES, CLASSES, AND SERVICES
- Subchapter I - PROVISIONS RELATING TO MARKET-DOMINANT PRODUCTS (§§ 3621 — 3629)
- Subchapter II - PROVISIONS RELATING TO COMPETITIVE PRODUCTS (§§ 3631 — 3634)
- Subchapter III - PROVISIONS RELATING TO EXPERIMENTAL AND NEW PRODUCTS (§§ 3641 — 3642)
- Subchapter IV - REPORTING REQUIREMENTS AND RELATED PROVISIONS (§§ 3651 — 3654)
- Subchapter V - POSTAL SERVICES, COMPLAINTS, AND JUDICIAL REVIEW (§§ 3661 — 3664)
- Subchapter VI - GENERAL (§§ 3681 — 3686)
- Subchapter VII - MODERN SERVICE STANDARDS (§§ 3691 — 3692)