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Electronic Code of Federal Regulations (e-CFR)
Title 30—Mineral Resources
CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
SUBCHAPTER B—TESTING, EVALUATION, AND APPROVAL OF MINING PRODUCTS
PART 27—METHANE-MONITORING SYSTEMS
Subpart B—Construction and Design Requirements
30 CFR Part 27 - Subpart B - Construction and Design Requirements
CFR
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§ 27.20 Quality of material, workmanship, and design.
§ 27.21 Methane-monitoring system.
§ 27.22 Methane detector component.
§ 27.23 Automatic warning device.
§ 27.24 Power-shutoff component.
