23E+W+SSo far as anything done or treated as done under or for the purposes of any provision of the former enactments could have been done under or for the purposes of the corresponding provision of this Act, it is not invalidated by the repeal of that provision by has effect as if done under or for the purposes of the corresponding provision; and any order, regulation, rule or other instrument made or having effect under any provision of the former enactments shall, insofar as its effect is preserved by this paragraph, be treated for all purposes as made and having effect under the corresponding provision.