Pennsylvania Statutes Title 52 P.S. Mines and Mining § 70-223. Mine examiner; examine all mines prior to entrance of workmen; report of examination recorded in book

In all mines the mine examiner shall make a careful examination every morning of all working places and traveling roads and all other places which might endanger the safety of the workmen, before the workmen shall enter the mine, and such examination shall be made with a safety lamp within three hours at most, before time for commencing work, and a workman shall not enter the mine or his working place until the said mine or part thereof and working place are reported to be safe. Every report shall be recorded without delay in a book which shall be kept at the colliery for the purpose and shall be signed by the person making the examination.