The consent of the Secretary of State for the purposes of—
(a)section 45(4)(b), 46(4) or 47(4) (consent to waiver of liability to repay renovation grant, common parts grant or HMO grant on disposal), or
(b)section 34(6)(b), 44(3)(a), 51 or 52 (conditions imposed with consent of Secretary of State),
may be given either generally or in relation to any one or more specified authorities or descriptions of authority or in relation to particular cases or descriptions of case.