4The preceding provisions of this Schedule shall, in relation to the making of trade effluents byelaws by the Minister in default of a local authority, and in relation to the publication of such byelaws made by him, have effect subject to the following modifications:—
(a)the duties of the local authorities under paragraph 1 of this Schedule shall, in connection with the making of the byelaws, be performed by the Minister;
(b)in paragraph 2 of this Schedule the reference to any notice which the local authority are required to publish shall be construed as including reference to any' notice which the Minister is required to publish; and
(c)the local authority shall have the same duty under paragraph 3 of this Schedule in relation to the byelaws as they have in relation to byelaws made by the local authority and confirmed by the Minister.