12.—(1) Where, as a result of an air quality review, it appears that any air quality standards or objectives are not being achieved, or are not likely within the relevant period to be achieved, within the district of a district council, the council shall by order designate as an air quality management area (in this Part referred to as a “designated area”) all or any part of its district in which it appears that those standards or objectives are not being achieved, or are not likely to be achieved within the relevant period.
(2) An order under this Article shall identify the designated area and shall be in such form as may be prescribed.
(3) A district council shall after making an order under this Article cause to be published in the Belfast Gazette and once at least in each of two successive weeks in more than one newspaper circulating in the district to which the order relates a notice—
(a)stating that the order has been made, and its general effect; and
(b)specifying a place in the district of the council where a copy of the order and of any map or plan referred to therein may be inspected by any person free of charge at all reasonable times
(4) An order under this Article may, as a result of a subsequent air quality review,—
(a)be varied by a subsequent order; or
(b)be revoked by such an order, if it appears on that subsequent air quality review that the air quality standards and objectives are being achieved, and are likely throughout the relevant period to be achieved, within the designated area,
and paragraphs (2) and (3) also apply to an order made under sub-paragraph (a) or (b).