7.—(1) Where the department makes an order under Article 13 or 15 the sole effect of which is to vary charges, the Department shall publish at least 21 days before the order comes into operation in a newspaper circulating in the[F1 district] in which any parking place to which the order relates is situated a notice including the particulars specified in sub-paragraph (2).N.I.
(2) The particulars which the notice must contain are—
(a)the date on which the order comes into operation;
(b)the particulars described in paragraph 3(2)(a) to (c);
(c)the charges payable before the order comes into operation;
(d)the charges payable after the order comes into operation.