(1) An interim designation expires -
(a) at the end of the period of 30 days beginning with the date on which it was made, or
(b) on the making of a final designation in relation to the same person,
whichever is the earlier.
(2) Where an interim designation expires the Treasury must -
(a) give written notice of that fact to the designated person, and
(b) take reasonable steps to bring that fact to the attention of the persons informed of the designation.
(3) Where an interim designation expires on the making of a final designation in relation to the same person -
(a) a notice under subsection (2) above may be combined with a notice under section 3(1)(a), and
(b) steps under subsection (2) above may be combined with steps under section 3 to publicise the final designation.