---
kind: "unit"
title: "39"
title_heading: "Postal Service"
key: "chIII/subchE"
level: "subchap"
label: "Subchapter E"
heading: "Regulations Governing Market Dominant Products, Competitive Products, Product Lists, and Market Tests"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/39/chIII-subchE"
sections_count: 130
---

# Subchapter E — Regulations Governing Market Dominant Products, Competitive Products, Product Lists, and Market Tests

Title 39 C.F.R. — Postal Service › Chapter III — Postal Regulatory Commission

## Contents

- [Part 3030 — Regulation of Rates for Market Dominant Products](/cfr/39/chIII-subchE-part3030.md)
- [Part 3035 — Regulation of Rates for Competitive Products](/cfr/39/chIII-subchE-part3035.md)
- [Part 3040 — Product Lists and the Mail Classification Schedule](/cfr/39/chIII-subchE-part3040.md)
- [Part 3041 — Competitive Negotiated Service Agreements](/cfr/39/chIII-subchE-part3041.md)
- [Part 3045 — Rules for Market Tests of Experimental Products](/cfr/39/chIII-subchE-part3045.md)