MSHA - Code of Federal Regulations - 30 CFR 71.210
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MSHA - Title 30 CFR
30 CFR § 71.210
Respirable dust samples; report to operator; posting.


(a) The Secretary shall provide the operator with a report of the following data on respirable dust samples as soon as practicable:

(1) The mine identification number;

(2) The designated work position at the mine from which the samples were taken;

(3) The concentration of respirable dust, expressed in milligrams per cubic meter of air, for each valid sample;

(4) The average concentration of respirable dust, expressed in milligrams per cubic meter of air, for all valid samples; and

(5) The reason for voiding any samples.

(b) Upon receipt, the operator shall post this data for at least 31 days on the mine bulletin board.


For further information: See MSHA's Program Policy Manual