32. A decision which may be revised under section 9 of the 1998 Act may not be superseded under Chapter 1 of this Part unless—
(a)circumstances arise in which the Secretary of State may revise the decision under Part 2; and
(b)further circumstances arise in relation to that decision which—
(i)are not set out in that Part; but
(ii)are set out in Chapter 1 of this Part or are ones where a superseding decision may be made in accordance with regulation 33(3).