§ 33.141. Safety check on employes.

 (a)  It is prohibited to allow one man to blast, cut, load or timber alone in a mine. Nothing in this subchapter shall be construed to prohibit a workman from working alone in a room at these tasks if other workmen are present in adjoining working places. The mine superintendent or foreman shall be responsible for insuring that this subsection is complied with.

 (b)  The owner, operator or superintendent of each mine shall provide a check board for all employes working in the mine. The mine superintendent, foreman or some competent person designated by either of them shall inspect the check board and make sure that all employes are safely out of the mine before leaving the mine at the end of the day.