(1) The authority shall, as soon as may be after the date of appointment of a board by notice in the Gazette, declare the area outlined and described in terms of paragraph (a) of subsection (2) of section sixty-six to be a provisional clearance area.
(2) Copies of a clearance notice shall be—
(a) published once a week for two consecutive weeks, commencing one week after the date on which the clearance notice was published in the Gazette, in a newspaper circulating in the locality of the provisional clearance area; and
(b) served on—
(i) every owner or right holder of land within the provisional clearance area; and
(ii) the Director of Physical Planning and the appropriate local planning authority.