Any person who wishes to use a transportation plant shall apply in writing to the head of the relevant provincial office of the Department of Labor for permission for such use and shall, together with such application, submit -
(a) a complete set of design calculations and drawings of the proposed installation; and
(b) a certificate issued by a registered professional engineer certifying that they have checked the design of the installation and that such design will ensure the safe operation of the installation under all permitted loadings.