---
kind: "unit"
title: "30"
title_heading: "Mineral Resources"
key: "chI/subchB/part27"
level: "part"
label: "Part 27"
heading: "Methane-Monitoring Systems"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/30/chI-subchB-part27"
sections_count: 29
---

# Part 27 — Methane-Monitoring Systems

Title 30 C.F.R. — Mineral Resources › Chapter I — Mine Safety and Health Administration, Department of Labor › Subchapter B — Testing, Evaluation, and Approval of Mining Products

## Contents

- [Subpart A — General Provisions](/cfr/30/chI-subchB-part27-subpartA.md)
- [Subpart B — Construction and Design Requirements](/cfr/30/chI-subchB-part27-subpartB.md)
- [Subpart C — Test Requirements](/cfr/30/chI-subchB-part27-subpartC.md)