12.—(1) This Regulation applies in any case in which the practice of a profession in the United Kingdom is subject to the possession of a Certificate.
(2) Subject to paragraph (3), the designated authority for a profession may not, on the grounds of inadequate qualifications, refuse to authorise a migrant to practise the profession on the same conditions as those which apply to holders of the required UK Certificate if any one of paragraphs 1, 4 or 5 of Schedule 4 applies.
(3) The requirement in paragraph (2) to authorise on the same conditions as those which apply to a holder of the required UK Certificate shall not restrict the right of the designated authority, in the circumstances and on the conditions laid down in Part 4 of these Regulations, to require a migrant—
(a)successfully to complete an adaptation period; or
(b)to take and pass an aptitude test.