---
kind: "unit"
title: "9"
title_heading: "Animals and Animal Products"
key: "chI/subchG"
level: "subchap"
label: "Subchapter G"
heading: "Livestock Improvement"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/9/chI-subchG"
sections_count: 99
---

# Subchapter G — Livestock Improvement

Title 9 C.F.R. — Animals and Animal Products › Chapter I — Animal and Plant Health Inspection Service, Department of Agriculture

## Contents

- [Part 145 — National Poultry Improvement Plan for Breeding Poultry](/cfr/9/chI-subchG-part145.md)
- [Part 146 — National Poultry Improvement Plan for Commercial Poultry](/cfr/9/chI-subchG-part146.md)
- [Part 147 — Auxiliary Provisions on National Poultry Improvement Plan](/cfr/9/chI-subchG-part147.md)