The rules referred to in section 169VE(2) are as follows; and in this section "the disposal concerned" means the previous disposal mentioned in section 169VE(2).
There are to be treated as having been disposed of in the disposal concerned—
If—
the available excluded shares are also to be treated as having been disposed of.
"The available excluded shares" means—
If the number of shares treated under subsections (2) to (4) as disposed of in the disposal concerned is less than the total number of shares disposed of, such number of the potentially qualifying shares in the holding at the material time as is equal to the difference are also to be treated as having been disposed of.
Where the number of potentially qualifying shares in the holding at the material time exceeds the difference mentioned in subsection (5), under that subsection potentially qualifying shares acquired later are to be treated as disposed of in preference to ones acquired earlier.
In this section "disposed of" (without more) means disposed of in the disposal concerned.