(1) At any time while a relevant designation has effect, the designated person may -
(a) request the Minister to vary the designation, or
(b) request the Minister to revoke the designation.
(2) But where a request under this section has been made in respect of a designation, no further request may be made under this section in respect of that designation unless the grounds on which the further request is made are or include that there is a significant matter which has not previously been considered by the Minister.
(3) On a request under this section the Minister must decide whether to vary or revoke the designation or to take no action with respect to it (but see section 22(3)).
(4) In this section -
"the designated person" means the person named by the designation or, where the designation is of persons of a specified description, any person of that description;
"the Minister" has the meaning given by section 22(1);
"relevant designation" has the meaning given by section 22(1).