An interested person may apply to the tribunal for a determination, as regards a higher-risk building, of any of the following—
the person or persons who are accountable persons for the building;
the person who is the principal accountable person for the building;
the part of the building for which any accountable person for the building is responsible.
Where, on an application under subsection (1)(b), it appears to the tribunal that there is more than one accountable person within section 73(1)(b), the principal accountable person is such one of those accountable persons as the tribunal considers appropriate.
In this section "interested person" means—
the regulator,
a person who holds a legal estate in any part of the common parts (or who claims to hold such an estate), or
a person who is under a relevant repairing obligation in relation to any part of the common parts (or who claims to be under such an obligation).
In subsection (3) "relevant repairing obligation" and "common parts" have the same meaning as in section 72.