41Transitional provisions as to restrictions under s. 40
(1)The provisions of section 40 of this Act shall have effect subject to the following provisions of this section.
(2)The restrictions imposed by that section do not apply to anything done before the first appointed day.
(3)The restrictions imposed by subsection (1) of that section do not apply to anything done on or after the first appointed day in relation to any animal feeding stuff in which a medicinal product of any description has been incorporated, and the restrictions imposed by subsection (3) of that section do not apply to anything done on or after that day which consists of incorporating a medicinal product of any description in any animal feeding stuff, if (in either case) it is done—
(a)before the date on which, by virtue of one or more orders under section 17 of this Act, section 16(2) of this Act ceases to have any effect in relation to medicinal products of that description, or
(b)before the end of the period of twelve months beginning with that date.
(4)The restriction imposed by section 40(2) of this Act does not apply to the importation on or after the first appointed day of any animal feeding stuff in which a medicinal product of any description has been incorporated if it is imported—
(a)before the date on which, by virtue of one or more orders under section 17 of this Act, section 16(3) of this Act ceases to have any effect in relation to medicinal products of that description, or
(b)before the end of the period of twelve months beginning with that date.