By statutory provision of a parish or any larger corporate union (Sec. 142) obligation may be imposed on male workers under eighteen years of age to attend an educational school, where such obligation is not imposed by common law. In the same way necessary provisions may be made for the enforcement of such obligation. In particular, statutory provisions may be made to ensure the regular attendance at school of such children as are under the age of compulsion, and to determine the obligations of the parents, guardians and employers in this respect, and directions shall be issued for the insurance of order in the school and of the proper behaviour of the scholars. Such persons as attend a guild school or other educational or technical school, shall be released from obligation imposed by statutory provisions to attend an educational school, where such guild or other educational or technical schools are recognised by the higher administrative authorities as fitting substitutes for the instruction of the general educational schools. Sec. 120_a_. Employers of industry shall be bound so to arrange and maintain their workrooms, business plant, machines and tools, and so to regulate their business, that the workers may be protected against dangers to life and health, so far as the nature of the business may allow. In particular, attention shall be paid to the supply of sufficient light, a sufficient cubic space of air and ventilation, to the removal of all dust and dirt arising from the work, and of all smoke and gases developed thereby, as well as to any risks inherent in it. Also such arrangements shall be made as are necessary to protect the workers against dangerous contact with the machines or parts of the machinery, or against other dangers proceeding from the nature of the place of business or of the business itself, especially against danger arising from fire in the factory. Lastly, such orders shall be issued for the regulation of business and the conduct of the workers, as may be necessary to ensure freedom from danger in work. Sec. 120_b_. Employers of industry shall be bound to make such arrangements and to issue such orders for the conduct of the workers as may be necessary to ensure the maintenance of decency and good morals. In particular, separation of the sexes in their work shall be enforced so far as the nature of the business may permit, where the maintenance of good morals and decency cannot be otherwise ensured in the arrangement of the business. In establishments where the nature of the business renders it necessary for the workers to change their clothes and wash themselves after their work, sufficient separate rooms for dressing and washing shall be provided for each sex. Sufficient lavatories shall be provided for the number of the workers, and they shall be so arranged as to meet all requirements of health, and to allow of their being used without offence to decency and morality. Sec. 120_c_.