4—(1) Before making an order under section 35, the Department must consult the following—N.I.
(a)such organisations as appear to the Department to be representative of persons substantially affected by the proposals, and
(b)such other persons as the Department considers appropriate.
(2) If, as a result of any consultation required by sub-paragraph (1), it appears to the Department that it is appropriate substantially to change the whole or any part of the proposals, the Department must undertake such further consultation with respect to the changes as it considers appropriate.
(3) If, before the day on which this Schedule comes into operation, any consultation was undertaken which, had it been undertaken after that day, would to any extent have satisfied the requirements of this paragraph, those requirements may to that extent be taken to have been satisfied.