---
kind: "unit"
title: "42"
title_heading: "Public Health"
key: "chI/subchM"
level: "subchap"
label: "Subchapter M"
heading: "Indian Health Service, Department of Health and Human Services"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/42/chI-subchM"
sections_count: 395
---

# Subchapter M — Indian Health Service, Department of Health and Human Services

Title 42 C.F.R. — Public Health › Chapter I — Public Health Service, Department of Health and Human Services

## Contents

- [Part 136 — Indian Health](/cfr/42/chI-subchM-part136.md)
- [Part 136a — Indian Health](/cfr/42/chI-subchM-part136a.md)
- [Part 137 — Tribal Self-Governance](/cfr/42/chI-subchM-part137.md)
- [Part 138-199 — Parts 138-199 [reserved]](/cfr/42/chI-subchM-part138-199.md)