[=Blasting when fire-damp is generating.=] He shall not fire a blast
in any working place which is likely to generate sudden volumes of
fire-damp, or where locked safety lamps are used, except with the
consent of the mine-foreman, or other competent person designated by
the mine-foreman for that purpose. (Sec. 962.)


[=Blasting when restricted to specific times.=] At a mine where the
firing of shots is restricted to specific times, no miner shall fire
a shot until the time appointed for him to do so, and then only in
such rotation as designated. (Sec. 962.)


[=Examination after blasting.=] After each blast, he shall exercise
great care in examining the roof and coal, and shall secure them
safely before beginning to load coal. (Sec. 962.)


[=Shall post after undermining.=] After the coal is undermined, he
shall, before shooting the coal, properly post the roof of his
working place.


[=Must not go under draw-slate.=] When draw-slate is over the coal,
he shall not go underneath the draw-slate until it is made safe
from falling, by securely posting it, and he shall not remove the
posts until the coal is removed and he is ready to take down the
draw-slate.