Section 154(1) in The Coal Mines Regulations, 2017
(1)Every main mechanical ventilator in a mine shall be capable of producing adequate ventilation in the mine or part thereof, and shall be installed on the surface at a distance of not less than 10 meters from the opening of the shaft or incline at any point.Provided that the provisions of this sub-regulation in so far as they require the installation of the main mechanical ventilator at a distance of not less than ten metres from the opening of the shaft or incline, shall not apply to a mechanical ventilator installed on the surface before the 24th day of October, 1957.
