30 CFR 70.210 : Mineral Resources (§ 1.1 To Parts 1291-1299) — (§ 1.1 To Parts 105-199) — Mine Safety And Health Administration, Department Of Labor (§ 1.1 To Parts 105-199) — Coal Mine Safety And Health (§ 70.1 To § 90.301) — Mandatory Health Standards - Underground Coal Mines (§ 70.1 To § 70.1900) — Sampling Procedures (§ 70.201 To § 70.212) — Respirable dust samples; transmission by operator.