CFR 30-71.202-2014 Mineral Resources. Part71:Mandatory health standards—surface coal mines and surface work areas of underground coal mines. Section71.202:Certified person; sampling.
(a) The respirable dust sampling required by this part shall be done by a certified person.
CFR 30-71.202-2014 history
1980CFR 30-71.202-2014 Mineral Resources. Part71:Mandatory health standards—surface coal mines and surface work areas of underground coal mines. Section71.202:Certified person; sampling.