Section 91: Interpretation of Part IV.

In this Part—

• "action plan" is to be construed— in relation to England, in accordance with section 83A;in relation to Wales, in accordance with section 83B;otherwise, in accordance with section 84(2);

• "air quality objectives" means objectives prescribed by virtue of section 87(2)(b) above;

• "air quality partner" has the meaning given by section 85A(1);

• "air quality review" means a review under section 82 or 85 above;

• "air quality standards" means standards prescribed by virtue of section 87(2)(a) above;

• "the appropriate agency" means—in relation to England, the Agency;in relation to Wales, the Natural Resources Body for Wales;in relation to Scotland, SEPA;

• "designated area" has the meaning given by section 83(1) above;

• "local authority", in relation to England and Wales, means— and, in relation to Scotland, means a council for an area constituted under section 2 of the Local Government etc. (Scotland) Act 1994;

  (a)any unitary authority,

  (b)any district council, so far as it is not a unitary authority,

  (c)the Common Council of the City of London and, as respects the Temples, the Sub-Treasurer of the Inner Temple and the Under-Treasurer of the Middle Temple respectively,

• "neighbouring authority", in relation to a local authority ("the principal authority"), means another local authority whose area is contiguous with the area of the principal authority;

• "new Agency" means the Agency or SEPA;

• "prescribed" means prescribed, or of a description prescribed, by or under regulations;

• "regulations" means regulations made by the Secretary of State;

• "the relevant period", in the case of any provision of this Part, means such period as may be prescribed for the purposes of that provision;

• "relevant public authority" has the meaning given by section 81A(2);

• "relevant Welsh public authority" has the meaning given by section 81B(2);

• "the strategy" has the meaning given by section 80(1) above;

• "unitary authority" means—

  (a)the council of a county, so far as it is the council of an area for which there are no district councils;

  (b)the council of any district comprised in an area for which there is no county council;

  (c)the council of a London borough;

  (d)the council of a county borough in Wales.

Any reference in this Part to it appearing that any air quality standards or objectives are not likely within the relevant period to be achieved includes a reference to it appearing that those standards or objectives are likely within that period not to be achieved.