164. Application of this Part---(1) Subject to subsections (2) and (3)
 of this section, this Part of this Act shall apply to those pesticides
 which, before the date of commencement of this Act, were---
   (a) Registered pesticides under section 21 of the Pesticides Act 1979;
         or
   (b) Pesticides subject to an experimental use permit under section 25
         of the Pesticides Act 1979; or
   (c) Pesticides subject to Ministerial exemption under section 8 of the
         Pesticides Act 1979.

   (2) Where, before the date of commencement of this Act, any pesticide
 was subject to Ministerial exemption under section 8 of the Pesticides
 Act 1979, it shall be exempt only from such of the provisions of this
 Part of this Act as are equivalent to those provisions of the Pesticides
 Act 1979 from which it was exempted under the notice of Ministerial
 exemption.

   (3) This Part of this Act shall not apply to any pesticide included in
 any regulations made under section 160 (1) (a) or (c) of this Act.