KRS 352.090: Abandoned parts of mine to be posted -- Sealing.

(1) All unused workings and abandoned parts of mines shall be protected by safeguards

that will prevent the accumulation or overflow of gas, and all avenues leading

thereto shall be so arranged and conducted as to give warning to all persons of the

danger of entering, and notice shall be posted warning all unauthorized persons not

to enter these parts of the mine. If the area cannot be adequately ventilated, and

examined, or evaluated it shall be sealed in a timely manner.

(2) No person, except persons authoriz ed to make examination thereof, shall enter any

unused or abandoned part of a mine after the warning has been posted.

(3) Where the practice is to seal abandoned workings, the sealing shall be done in

accordance with a mine seal construction plan approved by MSHA and submitted to

the Division of Mine Safety. Seal construction shall be done immediately in an

effective manner with noncombustible material. In every sealed area, one (1) or

more of the seals shall be fitted with a pipe and cap or valve to permit the gases

behind the seals to be sampled and also to provide a means of determining any

existing hydrostatic pressure. When required by the mine inspector and

commissioner, drill holes shall be extended from the surface to the sealed area, or

vent pipes s hall be extended from the sealed area to a return air course. Sufficient

ventilation shall be provided at each seal to prevent dangerous gases from

accumulating.