N.2—(1) An area of land is an approved site for the purposes of Class A and B of this Part if—
(a)it is identified in a grant of planning permission or any instrument by virtue of which planning permission is deemed to be granted, as land which may be used for development described in this Part; or
(b)in any other case, it is land immediately adjoining an active access to an underground mine which, on 5th December 1988, was in use for the purposes of that mine, in connection with the purposes described in paragraph A.1(b)(i) or (ii) or paragraph B.1(b)(i) to (iii) of this Part.
(2) Subject to sub-paragraph (3), land is an authorised site for the purposes of Class D and F of this Part if—
(a)it is identified in a grant of planning permission or any instrument by virtue of which planning permission is deemed to be granted as land which may be used for development described in this Part; or
(b)in any other case, it is land immediately adjoining an active access which, on 5th December 1988, was in use for the purposes of that mine in connection with coal-mining operations.
(3) For the purposes of sub-paragraph (2), land is not to be regarded as in use in connection with coal-mining operations if—
(a)it is used for the permanent deposit of waste derived from the winning and working of minerals; or
(b)there is on, over or under it a railway, conveyor, aerial ropeway, roadway, overhead power line or pipe-line which is not itself surrounded by other land used for those purposes.