4. The Agency shall recognise such a water if the responsible authority of the country in which the water is extracted has certified that—
(a)it is satisfied —
(i)that the requirements in paragraphs 2 and 3 of Part 3 are established, and
(ii)with the evidence given pursuant to sub–paragraph (c) of paragraph 2; and
(b)periodic checks are made to ascertain that—
(i)the water is natural mineral water which complies with paragraph 3 of Section I of Annex I,
(ii)the characteristics of the water are assessed in accordance with—
(aa)points numbered 1 to 4 set out in paragraph 2(a) of Section I of Annex I;
(bb)the requirements and criteria listed in Part 3; and
(cc)recognised scientific methods, and
(iii)the provisions of Schedule 4 are being applied by the person exploiting the spring.