(1) This section applies in relation to—(a) mortgage duty imposed under section 268 on a caveat claiming an interest under a mortgage; and(b) mortgage duty imposed under section 269 on a release of mortgage.
(2) To the extent an amount of mortgage duty imposed on the relevant mortgage is calculated by reference to the rate under pre-amended section 254, the amount of mortgage duty imposed on the caveat or release is also calculated under pre-amended section 254, even if the caveat or release is effected on or after 1 January 2008.
(3) In this section—
"pre-amended section 254" means section 254 as in force before 1 January 2008.