4. The owner or occupier of any industrial premises, whether or not the premises are in existence at the commencement of these Regulations, shall not install, or cause to be installed, in those premises any lighting equipment, or alter or extend, or cause to be altered or extended, any portion of the lighting equipment in those premises, unless the lighting equipment to be installed, or the portion thereof, as SO altered or extended, conforms, as the case may be, with the relevant provisions of the Schedule to these Regulations.
5. The Minister may, from time to time, by order published in (INDUSTRIAL
the Gazette, prescribe interior artificial lighting standards for all or any industrial premises, or for any class of industrial premises, and may require the owners or occupiers of those premises, or of premises included in that class, to bring those premises into conformity with those standards within a period specified in the order.
Reg. 4 does not impose upon the owner or occupier of existing industrial premises any obligation to install lighting equipment equal to the standards prescribed in the Schedule unless he proceeds to alter or extend the existing lighting equipment; but reg. 5 enables the Minister to compel the owners or occupiers of industrial premises to alter their premises from time to time SO as to bring them into conformity with such standards of lighting as he may prescribe from time to time. The standards the Minister may adopt need not be the same as those prescribed by the Schedule.
The Regulations are in substance a law relating to public health in industrial premises. Apart from the power to make laws for the peace, order and good government of the Commonwealth with respect to quarantine and matters incidental thereto, there is no enumerated power specifically conferred upon the Commonwealth by S. 51 of the Constitution to make laws on this subject. It is therefore a subject with respect to which the power to legislate is reserved to the States by SS. 106 and 107 of the Constitution.
A glance at the statute books of the States shows that the States have freely exercised their legislative powers to safeguard public health, including the control of the erection and alteration of build- ings and their equipment, including industrial premises. It is in factories which conform to these laws that the industries of the Commonwealth have been carried on prior to the war and in which, whilst the Constitution remains unaltered, such industries will continue to be carried on upon the conclusion of peace.
It is urged that the manufacture of many kinds of munitions entails considerable precision that this requires a high standard of artificial illumination and that the purpose of the Regulations is to promote an increase in the accuracy and speed of work in factories,