(1)If an inspector is of opinion, with respect to a part of a mine that is by section fifty-five of this Act required to be ventilated, that, in the interests of the safety or health of the persons employed in that part of the mine, it is necessary or expedient to improve the ventilation produced therein, he may serve on the manager of the mine a notice specifying that part and stating that he is of opinion aforesaid with respect thereto and requiring (according as may be specified in the notice) either—
(a)that ventilation which, after the expiration of such period beginning with the day on which the notice becomes operative as may be specified therein, is produced in that part of the mine in pursuance of the said section fifty-five, must conform to such requirements as may be specified in the notice; or
(b)that such works for the purpose of improving the ventilation in that part of the mine as may be specified in the notice shall be executed before the expiration of that period.
(2)The provisions of Part XV of this Act with respect to references upon notices served by inspectors shall apply to a notice served under the foregoing subsection.