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A county council for an area in England for which there are district councils may make recommendations to any of those district councils with respect to the carrying out of—
and the district council shall take into account any such recommendations.
Where a district council of a district in England for which there is a county council intends to prepare an action plan it must notify the county council that it intends to do so.
Where a county council has been given a notification by a district council under subsection (2A) it must, before the end of the relevant period, provide the district council with proposals for particular measures the county council will take to contribute to the achievement, and maintenance, of air quality standards and objectives in the area to which the plan relates.
A county council that provides proposals under subsection (3) must—
An action plan prepared by a district council of a district in England for which there is a county council must set out any proposals provided to it by the county council under subsection (3) (including the dates specified by the county council by virtue of subsection (4)(a)).
If it appears to the Secretary of State—
the Secretary of State may give directions to the county council requiring it to take such steps as may be specified in the directions.
Without prejudice to the generality of subsection (6) above, directions under that subsection may, in particular, require the county council—
The Secretary of State shall also have power to give directions to county councils for areas for which there are district councils requiring them to take such steps specified in the directions as he considers appropriate ...—
so far as relating to the quality of air.
Any direction given under this section shall be published in such manner as the Secretary of State considers appropriate for the purpose of bringing the matters to which it relates to the attention of persons likely to be affected by them; and—
It is the duty of a county council for an area for which there are district councils to comply with any direction given to it under or by virtue of this Part.