56Avoidance of danger from gas in waste.N.I.
(1)This section applies to waste other than—
(a)waste which is—
(i)stopped off in a prescribed manner or in such other manner as may be approved by[F1 the Executive] by notice served on the manager of the mine in which it is contained; or
(ii)stowed up; or
(b)waste, other than as aforesaid, with respect to which it is known that there is therein—
(i)no inflammable gas; and
(ii)either no noxious gas or no noxious gas in a dangerous concentration.
(2)It shall be the duty of the manager of every mine which contains any waste to which this section applies to secure either—
(a)that there is constantly produced in that waste ventilation adequate for the purposes mentioned in section 55(1); or
(b)that appropriate steps are taken for the purpose of minimising dangerous emissions from that waste of inflammable or noxious gas.
(3)Subsection (2) of section 55 shall, with any requisite modifications, apply for the purposes of subsection (2)( a) as it applies for the purposes of subsection (1) of that section.
F1SR 1999/150