Application of Regulations 50 and 51
52. In the case of a shipyard, the provisions of Regulations 50 and 51 shall, as respects the operations carried out in confined spaces formed by the structure of any ship or vessel, or of part of any ship or vessel, under construction or repair, be in substitution for the provisions of section 27 of the principal Act (which relates to precautions in places where dangerous fumes are liable to be present).