Sch 3 para 104 Balancing allowances
The reference in section 488(1)(d) to allowances previously made in respect of the expenditure— (a) includes any initial allowance made in respect of it under section 17 of FA 1956 or section 67 of CAA 1968, and (b) except in relation to initial allowances, is to be construed as if section 17 of FA 1956 had always had effect (instead of having effect only for chargeable periods after the year 1955-56).