Paragraph 4
Consideration falling within subsection (1) of the principal section constitutes a receipt for which a participator in a foreign field is accountable if, and only if,—
on the relevant assumptions, and
on the further assumption that the field asset which gives rise to the consideration is a qualifying asset,
the consideration would constitute, for the purposes of this Act, a tariff receipt or disposal receipt of the participator attributable to the foreign field.
In applying section 7 of this Act to determine whether any consideration falling within subsection (1)(c) of the principal section would, on the assumptions in sub-paragraph (1) above, constitute a disposal receipt, the reference in section 7(4)(b) of this Act to tariff receipts of the participator shall be construed as a reference to consideration falling within paragraph (a) or paragraph (b) of subsection (1) of the principal section which, on those assumptions, would constitute a tariff receipt of his.