8(1)Works to which sub-paragraph (2) below applies shall be treated for the purposes of Part 3 of the New Roads and Street Works Act 1991 (street works) as major transport works if—
(a)they are of a description mentioned in any of paragraphs (a), (c) to (e), (g) and (h) of section 86(3) of that Act (which defines what highway authority works are major highway works), or
(b)they are works which, had they been executed under the powers of the highway authority, might have been carried out in exercise of the powers conferred by section 64 (dual carriageways and roundabouts) or 184 (vehicle crossings over footways and verges) of the Highways Act 1980 (c. 66).
(2)This sub-paragraph applies to any works executed under this Act in relation to a highway which consists of or includes a carriageway, other than those executed under power delegated to a highway authority by an agreement under paragraph 14(2) below.