79(1)Sub-paragraph (2) applies where section 21(9) of CAA 1990 (expenditure on preparatory work on land where building used before 6th April 1956) applied to any expenditure immediately before the commencement of Part 3 of this Act, so that Part I of that Act (industrial buildings and structures) except for section 1 (initial allowances) applied to part of the expenditure separately from the remainder.
(2)Where this sub-paragraph applies, Part 3 of this Act, except for Chapter 5, similarly applies to the part of the expenditure separately from the remainder.