Section 145(2) in The Coal Mines Regulations, 2011
(2)In any working mine, in which a fire is known or believed to exist, -(a)adequate precautions shall be taken to prevent the passage of air, from any part of the mine on from the surface, into the fire area through any broken strata; and(b)no work other than the operations required under clause (a) shall be done in any part of the mine which is not effectively sealed off from any such goaf or broken strata.
