Where, by virtue of section 71(1), the assets forming part of any settled property are deemed to be disposed of and reacquired by the trustee on the occasion when a person becomes (or would but for a disability become) absolutely entitled thereto as against the trustee, then, if that occasion is the death of a person entitled to an interest in possession in the settled property—
Subsection (1)(b) above shall be treated as having effect in relation to a sub-fund settlement if the property does not revert to the trustees of the principal settlement in relation to that sub-fund settlement by reason only that—
Where the ... interest referred to in subsection (1) above is an interest in part only of the settled property to which section 71 applies, subsection (1)(a) above shall not apply but any chargeable gain accruing on the disposal shall be reduced by a proportion corresponding to that represented by the part.
Where the interest in possession referred to in subsection (1) above is one to which the person becomes entitled on or after 22nd March 2006, subsections (1) and (2) above apply in relation to that interest only if—
The last sentence of subsection (1) of section 72 and subsections (3) to (6) of that section shall apply for the purposes of this section as they apply for the purposes of section 72(1).