30 CFR §75.1103-3
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Automatic fire sensor and warning device systems installed in belt haulageways of underground coal mines shall be assembled from components which meet the minimum requirements set forth in §§ 75.1103-4 through 75.1103-7 unless otherwise approved by the Secretary.