(a) If there is a change in operational status that affects the
respirable dust sampling requirements of this part, the operator shall report
the change in operational status of the mine or designated work position to
the MSHA District Office or to any other MSHA office designated by the
District Manager. Status changes shall be reported in writing within 3
working days after the status change has occurred.
(b) Each specific operational status is defined as follows: (1)
Underground mine: (i) Producing--has at least one mechanized mining unit
producing material.
(ii) Nonproducing--no material is being produced.
(iii) Abandoned--the work of all miners has been
terminated and production activity has ceased.
(2) Surface mine:
(i) Producing--normal activity is occurring and coal is
being produced or processed or other material or equipment is being handled
or moved.
(ii) Nonproducing--normal activity is not occurring and
coal is not being produced or processed or other material or equipment is not
being handled or moved.
(iii) Abandoned--the work of all miners has been
terminated and all activity has ceased.
(3) Designated work position:
(i) Producing--normal activity is occurring.
(ii) Nonproducing--normal activity is not
occurring.
(iii) Abandoned--the dust generating source has been
withdrawn and activity has ceased.
