50.—(1) In the exercise of F89[its] powers under sections 48 and 49 and this section, the F89[Bank] may at any time consult the Advisory Committee and such other bodies as appear to F89[it] to be expert or knowledgeable in matters relating to credit unions.

(2) Without prejudice to the generality of subsection (1), the F89[Bank] may commission an independent assessment of the capacity of a credit union to provide any or each description of the additional services in respect of which it has made an approval application; and, if the F89[Bank] so directs, the credit union shall defray the costs of such an assessment.

(3) If it appears to F89[it] appropriate to do so, the F89[Bank] may at any time by notice—

(a) withdraw an approval granted under section 49;

(b) revoke or vary any conditions imposed on such an approval; or

(c) impose new conditions on such an approval;

but any such action by the F89[Bank] shall not require the disposal of any property or right already acquired.

(4) In this section “approval application” has the same meaning as in section 49.