xmlns:atom="http://www.w3.org/2005/Atom"
16. A Declaration of a zone—
(a)shall be in writing;
(b)may be amended by further declaration at any time;
(c)shall designate the extent of the zone being declared;
(d)may only be revoked by further declaration; and
(e)shall be published in such a manner and to such extent as the Department considers necessary.