Prohibition on sale etc

27.  As respects the requirements of these Regulations, subsections (1) and (2) of section 2 of the Act (which prohibit sales and possession for sale of goods and component parts not complying with regulations) shall apply in relation to goods and component parts manufactured before the imposition of these requirements notwithstanding anything in subsection (4) of that section (which exempts such goods and parts unless regulations otherwise provide).