162Designation etc
(1)The Secretary of State may by notice designate a person as the ISOP.
(2)A notice under subsection (1)—
(a)must specify the time from which the designation has effect;
(b)must be published by the Secretary of State as soon as reasonably practicable after the notice is given.
(3)The Secretary of State must ensure that a person is designated under subsection (1) at all times after a person is first designated (but at any time not more than one person may be designated).
(4)The Secretary of State may by notice revoke a person’s designation under subsection (1).
(5)A notice under subsection (4)—
(a)must specify the time from which the revocation has effect;
(b)must be published by the Secretary of State as soon as reasonably practicable after the notice is given.