MSHA - Code of Federal Regulations - 30 CFR 75.1103-3
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MSHA - Title 30 CFR
30 CFR § 75.1103-3
Automatic fire sensor and warning device systems; minimum requirements; general.


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.


[37 FR 16545, Aug. 16, 1972]