A. In case of a fire, the next inby permanent stopping into the return air course shall be opened as soon as possible in order to short circuit the air and permit close access to the fire for extinguishment.
B. When a fire that could endanger persons underground cannot be extinguished immediately, such persons shall be withdrawn promptly from the mine.
C. If a fire occurs, the person discovering it and any other person in the vicinity of the fire shall make a prompt effort to extinguish it.