(1)The foregoing provisions of this Part of this Act relating to sanitary conveniences and any regulations made thereunder shall be enforced by the district council.
(2)The foregoing provisions of this Part of this Act relating to cleanliness, overcrowding, temperature, ventilation and drainage of floors and any order or regulations made thereunder shall, as respects any factory in which mechanical power is not used, be enforced by the district council:
Provided that—
(a)in the case of any class or description of factory or parts thereof in respect of which special provision is made by this Act or any order or regulation made thereunder, against a risk of industrial disease or other risk of injury to health, the Secretary of State may by order direct that the said provisions or any of them shall not be enforced by the district council; and
(b)this subsection shall not apply to any premises occupied or used by a railway company for the purposes of their railway or to any premises vested in the owners, trustees or conservators, acting under powers conferred on them by Parliament, of any dock, harbour or inland navigation and used for the purposes of the dock, harbour or inland navigation.
(3)Every district council shall keep a register of all factories situate within their district with respect to which the duty of enforcing any of the said provisions is imposed upon them.
(4)For references in any of the foregoing provisions of this Part of this Act to an inspector there shall, as respects any factory or part thereof in which that provision is enforceable by a district council, be substituted references to a medical officer of health.