232. Separate ventilation plan for CBM, AMM or CMM.
(1)Separate ventilation plan shall be maintained showing the position of each exploration and production borehole and gas transportation pipe lines.(2)Ventilation planning of the mine shall be dope in consultation with the scientific body of repute, and quantity as well as quality of air reaching in each split and gallery through which transport gas transportation pipe line passes, shall be fixed.(3)Air measurement stations shall be fixed at each split through which gas transportation pipe line passes in belowground working and air measurement at all such stations shall be taken in each shift and the record thereof maintained in the bound paged book kept for the purpose, signed by the ventilation officer, official in-charge of the CBM or AMM or CMM operation and counter signed and dated by the manager of the mine.(4)Whenever the normal ventilation of the mine is disturbed, all CBM or AMM or CMM activities shall immediately be stopped and CBM recovery work shall not be resumed till the normal ventilation of the mine is restored.(5)A coal barrier of not less than 150 metre in thickness shall be maintained in the same seam from old boreholes and present working of the mine from where extraction of methane is in progress.(6)The ventilation plan and section required to be kept maintained under sub-regulation (1) shall be kept updated in every shift and shall be signed by the ventilation officer and countersigned and dated by the assistant manager in-charge of the CBM or AMM or CMM project or work.
